Hands-on Parylene conformal coating training covering deposition, masking and inspection

Training, Trust & Technology – The SCH Way of Working

November 14, 2025 Training

At SCH Services Ltd, we believe that excellence doesn’t happen by chance. It’s built—carefully, consistently, and collaboratively—through three key pillars: training, trust, and technology.

In the high-precision world of conformal coating, Parylene deposition, and ESD control, every detail matters. But behind every perfect finish is something even more important—a team that’s skilled, trusted, and equipped with the right tools.

Training: Building capability from the inside out

SCH’s success is built on people who understand why their work matters. From new starters to senior technicians, everyone is part of an ongoing development journey that combines structured training with on-the-job experience.

We invest in:

Structured training pathways for coating, masking, demasking, inspection, and Parylene application.
Competency matrices that track skill progression and highlight where extra coaching is needed.
Cross-functional learning, so each person understands not just their own process, but how it connects to the next.

Training isn’t just about compliance—it’s about confidence. When staff understand both the process and the purpose, they take pride in the results.

Trust: Empowering people to deliver

Trust is at the core of how we work. We hire for potential and attitude, then give people the structure and autonomy to succeed.

At SCH, we believe:

Trust means delegating responsibility, not just tasks.
Accountability grows when people feel ownership of outcomes.
Open communication creates a workplace where feedback leads to improvement, not fear.

Our production, quality, and operations teams work hand-in-hand—supported, not micromanaged. That trust shows in the consistency of our output, the reliability of our customer commitments, and the way our staff support one another when pressure is on.

Technology: Precision through innovation

Technology is the third pillar of the SCH way. From advanced selective coating and UV inspection systems to Parylene vacuum deposition and ProShield ESD control, our investment in technology keeps us ahead of industry standards.

We use technology to:

Reduce variation and improve repeatability.
Track efficiency and quality metrics across every job.
Shorten turnaround times while maintaining strict process control.

Innovation at SCH isn’t about chasing the latest gadget—it’s about using the right technology to make people’s work easier, safer, and smarter.

Where the three pillars meet

When training, trust, and technology align, you get more than just good results—you get a culture of continuous improvement.

Trained people use technology better.
Trusted people take ownership of quality.
Modern tools free skilled staff to focus on detail and precision.

That’s the SCH difference. It’s why our customers rely on us for high-reliability coating solutions, and why our people stay, grow, and take pride in what they do.

The SCH Way – simple, effective, human

At the end of the day, we’re a people business powered by technology. Whether we’re coating a medical device, protecting an aerospace circuit, or implementing an ESD program, our approach remains the same—train well, trust deeply, and invest wisely.

That’s the SCH way of working.

Rework in Conformal Coating and Parylene: Why Removal Method Matters More Than Most Teams Realise

November 12, 2025 Technical Insights

What coating services experience teaches about speed, control and damage risk in real PCB rework

Rework is not just unavoidable — it is one of the biggest hidden cost drivers in conformal coating and Parylene processing.

In practice, the method used for rework often determines whether a defect is corrected in seconds or becomes a multi-step process involving stripping, cleaning, drying and re-inspection.

Across both liquid conformal coating services and Parylene services, the same pattern appears repeatedly: the real limitation is rarely whether the coating can be removed. The real limitation is how controlled, repeatable and localised the removal method is.

This matters because rework is where many otherwise stable coating processes lose time, create board damage, or introduce new variability. For a broader overview of removal options, see our guide to conformal coating removal methods.

Quick take. The biggest rework problem is not whether removal is possible. It is whether the removal method gives consistent control without damaging pads, solder mask, plated surfaces or adjacent components. That is why micro-abrasive removal has become so important in both conformal coating and Parylene rework.

Micro-abrasive removal of conformal coating from PCB showing precise localised stripping without damaging solder mask or components

What we see in real production

Across coating services, rework typically falls into two broad categories:

Liquid coatings such as acrylic, polyurethane and silicone — often removable, but time is lost in softening, cleaning, rinsing, drying and local touch-up.
Parylene — chemically resistant and extremely thin, which makes traditional removal slow, inconsistent and highly operator-dependent when done manually.

In both cases, rework can be triggered by missed masking, exposed keep-out areas, engineering changes, inspection findings, soldering access requirements or local repair work. The problem is not unusual. It is routine.

The engineering challenge is therefore not “how do we avoid rework completely?” but “how do we make rework fast, localised, safe and repeatable?”

Why traditional rework methods slow the process down

In practice, most liquid conformal coating rework is carried out using chemical stripping, while Parylene removal often falls back to manual methods due to its chemical resistance. Both approaches can work, but they introduce limitations in control, consistency and process time.

Wet chemical stripping (liquid coatings)

Primary method for acrylics and polyurethanes using local or full stripping processes
Requires dwell time for softening, followed by cleaning and rinse stages
Introduces risk of under-component ingress if not tightly controlled
Can affect labels, plastics, adhesives and connector materials
Adds process steps (strip → clean → dry → inspect) which increase cycle time

Manual removal (primarily Parylene and localised cases)

Parylene is highly resistant to chemical stripping, so manual removal is often used
Knives and fibre pens tend to drag rather than create clean exposure areas
High risk of damaging pads, plating or solder mask
Strong operator dependency and poor repeatability
Time increases rapidly on fine-pitch or dense assemblies

Local scraping on liquid coatings (limited use cases)

Sometimes used for small local repairs or silicone coatings where stripping is less practical
Generally avoided for production rework due to damage risk and inconsistency

Across all methods, removal is usually achievable — but control, repeatability and process efficiency are often the real limitations.

Practical warning sign. If rework time varies dramatically between operators, boards or shifts, the issue is often not the coating chemistry itself. It is the removal method and how much operator judgement it depends on.

Why micro-abrasive blasting changes the equation

Micro-abrasive blasting addresses a specific bottleneck that appears across both liquid and Parylene rework: controlled, localised removal without chemical soak, blade pressure or thermal stress.

Using systems such as the Vaniman ProBlast 3 ESD, operators can expose solder joints, connector edges, test points and local repair areas by eroding the coating layer rather than softening it chemically or cutting it mechanically.

This matters because the rework step becomes much closer to a controlled process than an operator-dependent workaround.

For structured guidance on where micro-abrasion sits alongside chemical and manual methods, see the Removal & Rework Hub.

What the Vaniman ProBlast actually does well

The ProBlast is not an industrial sandblaster. It is a controlled micro-abrasion system intended for delicate removal work on electronics. In practice, its value comes from a few specific advantages:

Foot-pedal control for consistent on/off blasting
Adjustable pressure and media flow for local process tuning
Dry removal with integrated debris extraction
No heat and no solvent exposure
Applicability across both liquid coatings and Parylene removal workflows

The key point is not that it removes coatings. It is that it can remove them locally, quickly and with much better repeatability than manual scraping or wet stripping in many rework situations.

Why rework fails in practice

The biggest rework issue is not removal. It is control.

Over-removal damages solder mask or pads
Under-removal leaves contamination or poor surfaces for re-coating
Wet methods introduce ingress, drying and residue risks
Manual methods create strong operator-to-operator variation
Slow rework encourages “good enough” decision-making under production pressure

This is why rework often becomes one of the least stable parts of the coating process. It sits outside the main recipe but still has a major effect on yield, labour cost and downstream reliability.

For a wider process view of how repeatability is lost in coating operations, see Why Conformal Coating Processes Fail.

ProBlast vs wet stripping vs scraping

Feature	ProBlast	Chemical Stripping	Manual Scraping
Works on Parylene?	Yes	Usually no / limited	Yes, but slow
Time per rework	Fast	Medium to slow	Slow
Risk of board damage	Low when controlled properly	Medium	High
Cleanliness	Dry, extracted	Wet, requires post-cleaning	Debris and fibres possible
Operator dependence	Lower	Medium	High
Safety burden	No solvents	Chemical handling and waste	Blade injury / debris risk

Where the time saving actually comes from

When people say micro-abrasive blasting can cut rework time by up to 50%, the value is not just in faster coating removal. The time saving usually comes from eliminating secondary steps:

No soak time waiting for chemical softening
No rinse and dry stage after local stripping
Less manual cutting and local board handling
Cleaner transition into re-soldering, repair or inspection

In other words, the gain is process simplification, not just media speed.

What This Means in Practice

Rework is no longer a side issue in coating operations. It is part of the real process architecture. The removal method chosen will strongly influence labour time, operator consistency, local damage risk and the quality of the recovered surface.

For liquid coatings, this often means deciding when wet stripping is still justified and when dry local removal is the better route. For Parylene, it often means recognising that manual scraping may be technically possible but operationally poor.

This is how modern coating operations move from “rework as a workaround” to rework as a controlled process step.

Where this fits in the wider coating system

Rework links directly to masking quality, inspection effectiveness, local defect interpretation and removal method selection. That is why it should not be treated as an isolated repair function.

In practice, teams get better results when rework is planned as part of the coating process rather than left to operator improvisation after defects are found.

For the wider technical structure around removal, local stripping and process selection, use the Removal & Rework Hub.

Why Choose SCH Services?

SCH works across both liquid conformal coating and Parylene processing, so our view of rework is based on real production behaviour rather than theory alone. We support customers with coating removal strategy, process review, micro-abrasive removal systems, training and practical rework support.

🛠️ Removal method selection – choosing the right route for liquid coatings, Parylene and local repair tasks.
🎓 Training and process support – helping operators make rework more repeatable and less damaging.
🔧 Equipment and service support – including Vaniman ProBlast systems and practical coating removal guidance.

📞 Call: +44 (0)1226 249019 | ✉ Email: sales@schservices.com | 💬 Contact Us ›

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Note: This insight provides general technical guidance only. Final removal method, process controls, board-level risk and validation decisions must be confirmed against the coating type, component sensitivity, customer specification and applicable standards.

5 Industries Benefiting from Parylene Coating Technology

November 10, 2025 Parylene

Parylene coating applications are now recognised as one of the most advanced protective solutions for electronics, sensors, medical devices and precision components. Applied through chemical vapour deposition (CVD), Parylene forms a completely uniform, pinhole-free film that conforms to every surface — even into microscopic gaps and sharp edges.

Unlike traditional liquid coatings, Parylene contains no solvents, does not shrink or crack, and creates no surface tension during deposition. It is applied as a vapour, building molecule by molecule to produce an ultra-thin, transparent and highly durable coating. Because of this unique combination of properties, demand for high-reliability Parylene coating services and Parylene equipment continues to grow across multiple sectors.

Thanks to its chemical resistance, moisture barrier performance, electrical insulation and biocompatibility, Parylene coating applications now span a wide range of industries. Below are five of the most important Parylene coating applications seen across global markets today.

1. Aerospace and Defence

Aerospace and defence equipment must perform flawlessly in environments where failure is not an option. Electronics and sensors face extreme temperatures, pressure changes, vibration, salt fog, fuel vapours and moisture.

Why Parylene works so well in this industry:

Ultra-thin and lightweight protection without affecting component tolerances.
Exceptional barrier against corrosion, humidity and atmospheric contaminants.
Stable electrical insulation even at high altitude and low pressure.
Zero outgassing, ideal for space and satellite applications.

Typical aerospace/defence applications:

Avionics and flight control systems
Radar, communication and navigation modules
Fuel system sensors and connectors
Satellite electronics, optics and camera assemblies
Military night-vision equipment and guidance systems

Learn how Parylene protects avionics, satellite electronics and mission-critical defence systems in our Aerospace & Defence page.

2. Medical Devices and Life Sciences

Medical devices require coatings that are biocompatible, durable and able to withstand sterilisation methods such as autoclaving, ethylene oxide or gamma radiation. Parylene meets all these demands.

Key advantages for medical use:

Certified to ISO 10993 and USP Class VI biocompatibility standards.
Safe for implantable and skin-contact devices.
Creates a moisture and chemical barrier while preventing leaching of metals or chemicals from the device.
Flexible and non-cracking, even on thin-film circuits or small components.

Where it is used:

Pacemakers, neurostimulators and implantable sensors
Cochlear implants, hearing aids and diagnostic tools
Catheters, stents and surgical instruments
Lab-on-chip devices and microfluidic systems

See how Parylene is used to protect implants, surgical tools and diagnostic devices on our Medical Coatings section.

3. Automotive and Electric Vehicles (EVs)

Modern vehicles rely heavily on electronics that must survive vibration, temperature changes, oils, salt, water and dust. With electric vehicles, the demands on sensors and high-voltage systems are even higher.

Benefits in the automotive sector:

Protects PCBs, connectors and sensors from corrosion and moisture.
High dielectric strength ensures insulation in battery management and high-voltage systems.
Resistant to temperature extremes from engine heat to sub-zero climates.
Lightweight and thin, ideal for compact and sensitive components.

Typical components protected:

Battery management system (BMS) electronics
Advanced driver assistance systems (ADAS) including radar, LiDAR and cameras
ECU (Electronic Control Units) and PCB assemblies
LED lighting, sensors and underbody electronics

Learn more about Parylene protection for BMS, sensors and ADAS technologies on our Automotive & EV Parylene Coatings section.

4. Consumer Electronics and IoT Devices

Consumers expect their electronics to be smaller, lighter, waterproof and long-lasting. Parylene enables this without changing the appearance, size or performance of the device.

Why Parylene is chosen for consumer tech:

Transparent, ultra-thin coating that doesn’t affect touchscreens, buttons or LEDs.
Protects circuits from moisture, sweat, oils, dust and daily wear.
Ideal for miniaturised components such as MEMS sensors and microphones.
Improves lifespan and reliability without adding bulk.

Examples include:

Smartwatches, fitness trackers and wearable electronics
Smartphones components (microphones, speakers, cameras)
Hearing aids and earbuds
Smart home sensors and IoT devices

See how Parylene enhances durability in wearables, IoT devices and miniaturised electronics on our Consumer Electronics page.

5. Industrial, Energy and Harsh Environments

Industrial electronics face harsh settings—chemical vapours, humidity, salt, dirt, pressure and mechanical stress. Parylene helps ensure reliability, safety and longer operational life.

Why it’s valuable here:

High resistance to chemicals, solvents and gases
Prevents corrosion in offshore, marine and high-humidity environments
Strong electrical insulation for high-voltage systems
Works in high-pressure or submerged conditions without degrading

Applications in this sector:

Pressure and temperature sensors
Industrial control systems, PLCs and drive boards
Oil, gas and renewable energy electronics
Solar inverters, wind turbine sensors and power electronics
Leak detection and chemical instrumentation systems

Discover how Parylene protects sensors, control systems and energy infrastructure in harsh environments on our Industrial & Energy sector page.

Summary

Parylene is no longer a specialist coating used only in niche applications—it is now a critical protection technology used across aerospace, medical, automotive, consumer and industrial sectors.

Its unrivalled combination of ultra-thin coverage, chemical resistance, electrical insulation, flexibility and biocompatibility makes it one of the most reliable and versatile coating technologies available.

Whether it’s safeguarding a pacemaker, a drone sensor or an EV battery system, Parylene enables engineers to design smaller, lighter and more durable products that meet the growing demand for reliability and performance.

Additional Resources and Links

To help readers explore specific aspects of Parylene technology in more depth, the following related articles can be linked within this blog:

Parylene Basics: Dimer Grades, Properties & Uses – ideal for introducing what Parylene is and why different dimer types matter.
Parylene Deposition: Process Parameters – can be linked in the introduction or technical sections when explaining the CVD process and performance.
Masking for Parylene – suitable in sections where precision, coverage or protection of components is discussed (especially aerospace and medical).
Optical Thickness Measurement for Parylene – relevant when discussing quality control, reliability and performance in high-tech industries.
Parylene vs Liquid Coatings: Selection Guide – a useful comparison reference in the conclusion or consumer electronics section.

Ready to Take Your Parylene Coating Further?

Choosing SCH Services means partnering with a specialist, not just a supplier. We provide complete Parylene Solutions—supported by coating service, equipment, materials, process development and training.

Why manufacturers choose SCH:

25+ Years of Expertise – Trusted across aerospace, medical, defence, automotive and electronics industries.
End-to-End Support – From coating selection and Parylene grades to masking, application methods, inspection and ESD protection.
Scalable Capacity – Prototype trials, validation work or full high-volume production — we match your demand.
Global Coverage – Technical support and supply across the UK, Europe, North America and Asia.
Proven Quality & Reliability – Consistent results across services, equipment and materials.

Talk to our Parylene specialists:

Call: +44 (0)1226 249019 | Email: sales@schservices.com

Contact form: Use our website contact page to send us a message.

SCH Services team working in conformal coating, Parylene and ESD protection processes

Behind the Scenes at SCH – Where Precision Meets People

November 7, 2025 Blog

At SCH Services Ltd, we’re often known for what we deliver — world-class conformal coating, Parylene solutions, and ESD protection trusted by electronics manufacturers across the UK and beyond. But what truly defines SCH isn’t just the technology. It’s the people and processes behind it.

Step behind the scenes, and you’ll find that precision here isn’t just about machinery or materials — it’s about mindset. Every member of the SCH team understands that protecting electronics means protecting performance, reliability, and reputation. From the first board to the final inspection, every detail matters.

Precision in Every Process

Our commitment to precision runs through every layer of our operations. Whether it’s the controlled environment of our coating rooms, the exact science of Parylene deposition, or the meticulous ESD testing that underpins ProShieldESD, each step is guided by robust quality systems, ISO standards, and decades of expertise.

Our technicians and quality supervisors work closely together to ensure coatings meet the tightest specifications. Efficiency logs, training matrices, and continuous improvement processes help us stay on track — and ahead of industry expectations.

People at the Heart of Performance

What makes SCH different is that behind every coated board, every inspection, and every innovation, there’s a person who cares.

From our skilled masking and demasking technicians to our quality team and operations leaders, everyone contributes to the same goal — protecting what matters.

Our culture is one of accountability, teamwork, and continual growth. When challenges arise, we don’t point fingers — we find solutions.

Innovation with Integrity

As we prepare for Productronica 2025, we’re showcasing more than just technology. We’re sharing a story — one of people who take pride in their craft, of a company that combines innovation with integrity, and of a shared belief that excellence isn’t an act, but a habit.

At SCH, precision meets people every day. It’s what keeps us grounded, what drives us forward, and what makes the difference for every customer we serve.

Learn more about SCH’s conformal coating and Parylene solutions

Parylene coating forming an ultra-thin, transparent protective layer on electronic components

Parylene Coating Explained – Invisible Protection with Visible Results

November 5, 2025 Parylene

When it comes to protecting sensitive electronics and critical components, the best solutions are often the ones you can’t see. Parylene coating is exactly that — an ultra-thin, transparent film that provides superior protection without adding weight, altering dimensions, or affecting performance.

In this article, we break down what Parylene is, how the process works, and why it delivers results you can trust but barely see.

What is Parylene?

Parylene is a family of polymer coatings applied using a unique vapour deposition process. Unlike liquid coatings, it doesn’t rely on solvents or curing. Instead, it forms a pinhole-free, conformal layer that follows every contour of the surface — even sharp edges, crevices, and internal cavities.

Key Characteristics:

Completely transparent and ultra-thin (typically 5–50 µm)
Solvent-free, vacuum-deposited protective film
Uniform coating with no pooling or bridging
Excellent barrier to moisture, chemicals, and gases
High dielectric strength and electrical insulation

For a deeper understanding of how different Parylene grades behave in real applications, see our guide to Parylene basics: dimer grades, properties and applications.

How is Parylene Applied? The Vapour Deposition Process

Parylene coating isn’t sprayed or dipped — it’s deposited molecule by molecule in a vacuum chamber. Here’s how:

Vaporisation – Solid Parylene dimer is heated under vacuum, turning it into a vapour.
Pyrolysis – The vapour is heated again to break the dimer into monomers.
Deposition – These monomers enter a cool coating chamber where they polymerise and form a thin, uniform film over all exposed surfaces.
No Cure Required – Unlike liquid coatings, Parylene is ready immediately — no oven curing, no drying time.

This unique process ensures 360° coverage, reaching areas where sprays, brushes, and dips simply can’t.

Why Use Parylene? Visible Results from an Invisible Layer

Although invisible to the eye, Parylene’s protective performance delivers very real benefits:

Benefit	What It Means
Moisture & Chemical Barrier	Protects against corrosion, solvents, humidity, body fluids and harsh environments
Electrical Insulation	High dielectric strength and low leakage — ideal for PCBs, medical devices, sensors
Ultra-Thin & Lightweight	Adds protection without affecting size, weight or functionality
Biocompatible & ISO 10993 Certified	Safe for medical, implantable and life-science applications
Long-Term Reliability	No cracking, peeling, or yellowing — even under stress or thermal cycling

Where Is Parylene Used?

Parylene’s versatility makes it suitable across many industries where reliability is critical:

Aerospace & Defence — avionics, satellites, fuel systems, sensors
Medical Devices — catheters, implants, hearing aids, surgical tools
Automotive & EV — PCBs, battery systems, ADAS components
Consumer Electronics — wearables, sensors, microcircuits
Industrial & Energy — sensors, control systems, harsh environment electronics

Parylene vs Traditional Liquid Conformal Coatings

Feature	Parylene	Conformal Coatings (Acrylic, Silicone, Urethane)
Application	Vacuum deposition	Brush, spray, dip
Coverage	Complete 3D coverage, no shadows	Limited by line-of-sight application
Thickness	5–50 µm highly uniform	Often uneven, 25–200 µm
Solvents	Solvent-free	May contain VOCs
Cure Time	No cure required	Minutes to hours
Adhesion	Requires pre-clean and adhesion promoter	Generally good without promoter
Cost	Higher per unit — but minimal rework and failures	Lower upfront cost but more defects/rework

Find out more about the difference between Parylene and conformal coatings here.

Is Parylene Right for Your Product?

Parylene is ideal when:

You need high reliability in extreme environments
Conventional coatings don’t reach complex geometries
Devices are miniaturised or lightweight
Biocompatibility and cleanliness are required
Long-term product life and consistency are critical

Conclusions

Parylene may be invisible, but the results are not. With unmatched uniformity, protection and long-term performance, it delivers reliability where failure is simply not an option.

Whether you’re designing next-generation electronics, life-saving medical devices, or mission-critical aerospace systems — Parylene ensures invisible protection with visible results.

We’re Heading to Productronica 2025

November 4, 2025 News

We’re excited to announce that SCH Technologies will be attending Productronica 2025 in Munich this November — the world’s leading trade fair for electronics development and production.

Productronica brings together innovators, manufacturers and suppliers from across the globe to showcase the latest technologies, processes and solutions across PCB assembly, coating, inspection and advanced manufacturing.

For SCH, this is an opportunity to connect with partners, review emerging technologies and bring practical insights back to support our customers.

What we’ll be focusing on

Meeting partners and customers across Europe and globally
Reviewing new developments in conformal coating and Parylene technologies
Exploring advances in masking, inspection and coating process control
Identifying practical innovations that improve real production performance

Why events like Productronica matter

Major exhibitions like Productronica are not just about new equipment. They provide visibility into how the industry is evolving in terms of:

process stability and automation
material performance and compliance
inspection and quality control methods
scalable production approaches

For SCH, the focus is always on translating what we see into practical, usable improvements for customer processes.

Following updates from the show

We’ll be sharing selected updates following the event, including insights into new technologies and how they apply to real-world coating processes.

If you’re attending Productronica 2025 and would like to meet, feel free to get in touch in advance.

Related: For deeper guidance on coating process challenges and solutions, explore our Conformal Coating Processes Hub or visit our Insights page for practical engineering observations.

Contact SCH Technologies

If you would like to arrange a meeting at Productronica or discuss a coating requirement, we would be pleased to speak with you.

📞 Call: +44 (0)1226 249019 |
✉ Email: sales@schservices.com |
💬 Contact Us ›

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Subcontract conformal coating services for electronics manufacturing

The Hidden Costs of DIY Coating vs using SCH Services Coating Solutions

October 27, 2025 Coating Services

When “Doing It Yourself” Costs More Than You Think

In electronics manufacturing, it’s easy to assume that keeping conformal coating in-house will save time and money. But in reality, “DIY coating” often leads to hidden costs—extra labour, quality issues, and expensive downtime.

Setting up and maintaining a coating process is far more complex than most production teams anticipate. From equipment calibration to masking accuracy and inspection control, there’s a steep learning curve that can impact yield and product reliability.

At SCH Services Ltd, we specialise in subcontract conformal coating, helping manufacturers achieve consistent, high-quality protection without the overhead of running their own coating line.

1. Equipment Costs That Don’t Pay You Back

A full coating setup involves more than just a spray booth or dip system. You’ll need extraction units, curing ovens, inspection lighting, masking materials, and precision jigs—plus ongoing maintenance. These capital investments rarely achieve full utilisation. Production peaks and dips leave expensive machinery sitting idle, while maintenance and calibration costs continue to rise.

By outsourcing to SCH Services, you eliminate capital expenditure. Our purpose-built coating facilities operate at optimal efficiency every day, meaning you only pay for the coating you need—nothing more.

To understand what is really involved in setting up and maintaining an in-house line, see our overview of conformal coating systems and the equipment typically required to achieve repeatable results.

2. Labour and Training: The Hidden Overhead

DIY coating requires skilled technicians. Training staff to apply, inspect, and handle materials safely takes time and experience. Turnover or absences can leave you short-staffed, stalling production and increasing the risk of errors.

At SCH, our trained coating technicians and quality inspectors are dedicated specialists. Every board is processed under controlled conditions and backed by documented inspection data. That ensures consistent quality—without the cost of training or supervision on your side.

3. Rework, Rejects, and Quality Risks

DIY coating often appears cheaper—until rework begins. Missed areas, conformal coating defects, or masking failures can trigger costly reprocessing, material waste, and delivery delays.

SCH’s inspection process ensures uniform coverage and reliable protection on every job. Using magnification, controlled environments, and robust masking methods, we maintain repeatable coating quality that meets industry standards for aerospace, defence, medical, and automotive sectors.

4. Compliance and Environmental Control

Operating a coating line means dealing with solvents, VOC emissions, and waste disposal. Each of these brings legal, environmental, and safety obligations that require ongoing monitoring and documentation.

SCH Services operates under ISO 9001 and ISO 14001 certification, with fully compliant extraction and waste management systems already in place. Outsourcing to a certified partner removes this regulatory burden, protecting both your people and your audit trail.

5. Scalability and Turnaround

In-house coating can quickly become a production bottleneck—especially when volumes fluctuate or customer deadlines tighten.

SCH offers flexible capacity for both prototype and high-volume coating, ensuring consistent turnaround times without compromising quality. Whether you need rapid response on urgent jobs or scheduled coating support, we align with your production goals.

6. The True Value: Focus on Core Expertise

Ultimately, your team’s expertise is in designing, manufacturing, or assembling electronics—not in learning to mask, coat, and cure boards.

By partnering with SCH Services, you gain a trusted in-house extension that handles coating complexity for you.

You’ll benefit from:
• Lower overall costs (no capital, no rework, no waste)
• Predictable lead times
• Consistent quality and traceability
• Certified environmental and process compliance
• The freedom to focus on your core business

Conclusion: When Expertise Pays for Itself

DIY conformal coating can look attractive on paper—but the real costs soon surface in training, downtime, and rework. By outsourcing to SCH Services Ltd, you gain precision, consistency, and efficiency from day one.

Ready to compare the true cost difference?

Talk to our team today about how our subcontract and in-house coating solutions can reduce your costs and improve reliability.

Speak to our coating specialists
Details

Filler-free ESD coating using conductive polymer technology

Filler‑Free ESD Coating: The Next Generation of Static Control

October 24, 2025 ProShieldESD

When you hear “ESD coating,” most people picture a paint loaded with carbon or metal particles. But that’s exactly where conventional solutions fall short. The future lies in filler-free ESD coatings, and ProShieldESD is leading that shift.

Unlike traditional ESD paints and molded plastics that depend on conductive fillers, ProShieldESD uses a pure polymer backbone to deliver permanent, homogeneous static dissipation. It’s a technology that doesn’t just improve coatings — it transforms how industries approach ESD control.

For a broader overview of permanent static control technologies, see our ProShieldESD coating platform.

Why Filler-Based Solutions Fail

Filler‑based ESD coatings and conductive plastics have long been the default—but they come with built-in compromises:
• Segregation & clustering: Conductive particles (carbon, metal) can shift or clump during mixing, altering performance.
• Variable conductivity: Rather than a uniform layer, resistivity varies across a surface — creating weak zones.
• Drift over time: Particles wear, get damaged, or shift, especially under stress or in low humidity.
• Limited retrofit potential: You can’t reliably convert existing surfaces with molded ESD plastics — you need custom parts or high-cost replacements.

Many of these issues are explored in more detail in our ESD Control Knowledge Hub, including humidity sensitivity and long-term performance drift.

How ProShieldESD Changes the Game

1. Conductivity built in, not added

ProShieldESD’s conductivity comes from a 100% conductive polymer matrix — no fillers, no additives. The result is a coating whose static control is intrinsic and integral, not surface-limited.

2. Multi-chemistry platform

What makes this even more powerful is that the same foundational technology can be adapted across chemistries — PU, epoxy, water-based, solvent-based — and still maintain the same performance. That’s the platform difference.

3. Universal retrofit

Existing assets like floors, walls, metal structures, plastics, foams, or cartons can be coated directly. There’s no need to replace with engineered parts or rework your infrastructure.

4. Stability under extremes

Unlike filler-based coatings that fail under low humidity or heavy use, ProShieldESD remains stable. It doesn’t drift. It doesn’t degrade. It doesn’t need reapplication.

Use Cases Across Industries

Because it’s a platform (not a single product), ProShieldESD’s filler-free coating adapts to multiple sectors:

Electronics & Semiconductor — critical work surfaces, benches, ESD-safe trays
Aerospace & Defence — composite structures, metal racks, test jigs
Military & Rugged Systems — field-grade housings, transit cases
Automotive & Battery — factory floors, battery enclosures
Energy & Chemicals — piping, drums, containment vessels
RF & Antenna — radomes, enclosures where signal integrity matters
Packaging & Logistics — cartons, foams, crates
Explosives & Pyrotechnics — safe work surfaces under low-humidity

These are examples, not limits — the platform extends into applications where traditional filler-based ESD materials struggle to maintain stable conductivity, particularly under low humidity, mechanical wear, or long-term use. This is why platform-based solutions such as the ProShieldESD filler-free ESD coating platform are increasingly adopted.

Filler-Free vs Filler-Based: A Side-by-Side Comparison

Aspect	Filler-Based Coatings / Plastics	Filler-Free (ProShieldESD Platform)
Dependence on particles	Yes (carbon, metal powders)	No — conductivity built into polymer backbone
Uniformity	Varies, prone to weak spots	Homogeneous across entire surface
Drift / degradation	Likely over time	Stable, permanent, low maintenance
Retrofit ability	Limited to purpose-made parts	Can be applied to existing assets
Humidity / environment impact	Sensitive, loses performance	Maintains conductivity in diverse conditions
Chemistry flexibility	Fixed for each formulation	Platform supports multiple chemistries

The Bigger Picture: Platform Thinking

Yes — we’re talking filler-free coating techniques here. But what elevates it is positioning this as a platform — one that scales, adapts, and future-proofs static control solutions.

• The same technology underpins every variant (PU, epoxy, water-based, solvent-based).
• Performance doesn’t change even if the formulation does.
• It allows ESD control to be modular, systemic, and unified across operations.

That means less disruption, fewer specialty parts, and more reliability across your entire facility.

Getting Started

Transitioning to filler-free ESD control doesn’t require a total overhaul. ProShieldESD’s retrofit-friendly approach means you can roll out pilot sections — floors, benches, enclosures — and expand gradually, all while maintaining full operational continuity.

Call: +44 (0)1226 249019

Email: sales@schservices.com

Learn more: ProShieldESD Platform Page

Illustration showing filler-free conductive polymer structure used in ProShieldESD ESD coatings, enabling uniform static dissipation without carbon or metal fillers.

Dispelling the Myths About Static Control Paints

October 22, 2025 ProShieldESD

Static control paints (more accurately described as ESD control coatings) are widely used in electronics, aerospace, and manufacturing environments—but not all paints are created equal. Many misconceptions exist about how they work, their durability, and whether they truly provide permanent ESD protection. Let’s separate fact from fiction.

This article focuses on static control coatings as part of a wider ESD strategy, which is explained in more detail within the
ProShieldESD filler-free ESD coating platform.

Myth 1: All ESD Paints Provide the Same Protection

Fact: Traditional ESD coatings usually rely on carbon or metal fillers to achieve conductivity. These fillers can clump, settle, and create weak points. The result? Inconsistent protection across the surface.

ProShield Advantage: ProShield ESD coatings deliver homogeneous, permanent conductivity—no fillers, no hot spots, no weak zones.

Myth 2: ESD Paints Last Forever

Fact: Conventional paints degrade over time. Abrasion, cleaning, and environmental exposure all reduce performance, meaning they often need reapplication.

ProShield Advantage: ProShield is a permanent polymer-based coating. It bonds directly to surfaces and maintains its conductivity without reapplication, even under demanding conditions.

Myth 3: Paints Can Replace All Other Static Control Measures

Fact: Paints are only one layer of protection. They work best when integrated into the ESD Control Pyramid alongside grounding, dissipative materials, and anti-static measures. Effective static control programs are typically designed around IEC 61340 and ANSI/ESD S20.20, where coatings act as one controlled element rather than a standalone solution.

ProShield Advantage: Because ProShield covers the full range—from conductive (10⁴ Ω) through dissipative (10⁹ Ω)—it integrates seamlessly into layered ESD programs.

Myth 4: Molded ESD Plastics Are Always Better Than Paints

Fact: Molded parts are expensive, require tooling, and can also suffer from inconsistent conductivity due to filler distribution.

ProShield Advantage: ProShield coatings eliminate the need for costly molded plastics. They can be applied directly to standard plastics, foams, housings, and floors—delivering permanent, uniform protection at a lower cost.

The Truth About ProShield ESD
ProShield ESD coatings stand apart from traditional static control paints:

Permanent protection (no reapplication needed)
Homogeneous conductivity across every surface
Coverage from 10⁴ to 10⁹ Ω (conductive through dissipative)
Flexible, cost-effective alternative to both filler-based paints and molded plastics

By dispelling the myths, it’s clear: ProShield ESD is not just another paint—it’s a breakthrough in permanent, reliable static control.

To explore the technology, test data, and application options in more detail, visit www.proshieldesd.com.

How ProShield ESD Fits Into the ESD Control Pyramid

October 20, 2025 ProShieldESD

Controlling electrostatic discharge (ESD) is not about a single product or measure—it’s about building layers of protection. The ESD Control Pyramid is a useful way of visualising this: grounding forms the base, conductive and dissipative materials provide the structure, and anti-static measures help at the top to prevent charge build-up.

ESD control pyramid showing grounding, conductive and dissipative layers supported by ProShield ESD coatings

The ESD Control Pyramid illustrates how grounding, conductive and dissipative materials work together to provide complete static control.

At SCH Services Ltd, our ProShield ESD coating platform integrates seamlessly into this pyramid, covering the range from conductive (10⁴ Ω) through dissipative (10⁹ Ω), ensuring permanent, reliable static control across modern manufacturing environments.

The Base: Grounding and Conductive Materials

At the bottom of the pyramid sits grounding. Conductive materials (10³–10⁴ Ω) provide a fast, direct path to discharge static energy safely into ground.

Grounding and verification are typically managed within an overall ESD control program (for example IEC 61340 and ANSI/ESD S20.20), where the objective is controlled discharge without damaging sensitive devices.

How ProShield helps: By offering coatings at the conductive range, ProShield can be applied to fixtures, housings, or components that need a reliable path to ground—without resorting to costly moulded conductive plastics.

The Middle: Dissipative Materials

Above grounding, the pyramid relies on dissipative materials (10⁴–10⁹ Ω) to control the speed of discharge. This is where most ESD-sensitive environments—electronics manufacturing, aerospace, and medical—need protection.

How ProShield helps: ProShield ESD coatings are engineered to be permanent dissipative solutions. Unlike filler-based paints that degrade or moulded parts that require costly tooling, ProShield provides homogeneous, long-lasting protection across surfaces—helping charge dissipate safely and predictably.

The Top: Anti-Static Measures

Anti-static measures sit at the top of the pyramid. They reduce charge generation in the first place by minimising triboelectric charging caused by friction and separation. While they don’t remove existing charges, they reduce the likelihood of charge build-up.

How ProShield helps: ProShield integrates well into anti-static environments by ensuring that, if a charge does appear, it is either dissipated or conducted away safely—completing the pyramid of protection.

Why ProShield Outperforms Traditional Solutions

Many businesses rely on traditional ESD paints or moulded ESD plastics, but both have limits:

Paints = filler clumps, uneven coverage, performance drift, reapplication needed

Moulded plastics = costly tooling, limited retrofit flexibility, resistivity variation from filler distribution

ProShield is different:

✔ Covers 10⁴–10⁹ Ω in a scalable solution
✔ Permanent and homogeneous (no fillers, no reapplication)
✔ Works on standard plastics, foams, housings, fixtures, and floors
✔ Reduces dependency on specialty materials and purpose-built moulded parts

The ProShield Advantage in the Pyramid

The ESD Control Pyramid requires all three layers to function effectively. With ProShield ESD coatings, you gain:

✔ Conductive-range options for grounding paths at the base
✔ Dissipative performance through the working range most EPA environments require
✔ Compatibility with anti-static measures to reduce charge build-up and risk

By bridging every level of the pyramid, ProShield ESD offers a smarter, permanent, and cost-effective way to achieve complete static control—without the compromises of older filler-based technologies.

Learn more: Explore the ProShield ESD coating platform.