ISO-Certified Subcontract Conformal Coating Services
Flexible Outsourcing Backed by Expertise
SCH Services Ltd provides fast, reliable conformal coating services, specialising in liquid and nano coatings for PCB assemblies. From prototypes to high-volume production, our ISO 9001 and ISO 14001 certified processes deliver repeatable quality, full traceability, and industry-leading process control.
- Lowest like-for-like price guarantee
- Global reach with local expertise
- ISO 9001 & ISO 14001 certified facilities
- 25+ years of coating expertise
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End-to-End PCB Conformal Coating—Done for You
We protect PCB assemblies against moisture, dust, chemicals, and thermal cycling while keeping your production schedule on track. Our turnkey subcontract coating service covers every stage—from intake and documentation through to inspection, pack-out, and shipping.
Our Service Includes:
- Any volume: prototypes, NPI, or large-scale capacity
- Process specification development and risk analysis
- Clear acceptance criteria written into documentation
- Full batch traceability for every job
- Consistent turnaround times you can rely on
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Our Capability: Application, Cleaning & Curing
Every step of our liquid conformal coating services is engineered for precision, repeatability, and compliance. Moreover, we adapt our processes to meet the specific requirements of each customer.
Application Methods
- Dip coating – uniform 360° coverage with controlled dwell/withdrawal
- Batch spray – flexible and ideal for prototypes or mixed lots
- We also provide masking (boots, tapes, 3D parts), de-masking, touch-up, depanel, and packaging
Cleaning & Surface Preparation
- Aqueous or solvent cleaning matched to coating chemistry
- Ionic contamination testing (ROSE/IC) for cleanliness assurance
- Surface energy checks to confirm adhesion readiness
- Primer treatments where required to improve reliability
Curing & Thermal Control
- UV curing and ambient cure workflows depending on chemistry
- Convection ovens with logged cure profiles for traceability
- Stable environments controlling viscosity, temperature, and humidity
Coating Materials We Apply
We apply a wide range of liquid conformal coatings and nano coatings to meet performance, cost, and compliance requirements. In addition, our team can advise on the most suitable chemistry for your design.
- Acrylic (AR): cost-effective, fast cure, easy rework
- Polyurethane (UR): excellent toughness and chemical resistance
- Silicone (SR): flexible across extreme temperatures
- UV-cure systems: ultra-fast processing with secondary cure as needed
- Low-VOC and solvent-based options: aligned with regulatory requirements
- Nano coatings: ultra-thin hydrophobic/oleophobic barriers
Not sure which coating fits? Our team will assess your environment, reliability targets, and budget before recommending the best option.
Quality Control & Standards
We align every project to IPC-A-610 Class 3 and IPC-CC-830 standards, backed by ISO-certified processes. As a result, you can be confident every assembly meets specification.
Inspection & Test
- Film thickness verification (wet/dry) for accuracy
- Adhesion testing (cross-hatch/tape) to confirm bond strength
- 100% UV/white-light inspection for coverage and defects
- Audit-ready records supplied on request
Compliance
- Certified to ISO 9001 and ISO 14001 standards
- In addition, we maintain full ESD compliance
- We also provide risk assessments with fully traceable documentation
Process Control
- Controlled viscosity, temperature, and humidity during production
- Recipe monitoring with logged cure profiles
- End-to-end traceability for operators, materials, and lots
As a result, our advanced coating systems and stable processes deliver high yields, low rework, and fast turnaround—keeping your late-stage manufacturing on schedule.
FAQs on Conformal Coating Services
Do you apply nano coatings as well as liquids?
Yes, we do. In fact, nano coatings are ideal for ultra-thin protection on miniaturised PCBs where space is limited.
Can you help with coating material selection?
Absolutely. In addition, we provide guidance on balancing cost, rework needs, and environmental factors so you get the right chemistry for your application.
What cleanliness level is required?
We target low ionic contamination, and therefore we also verify adhesion readiness through surface energy checks before coating.
How are keep-out areas handled?
We use masking strategies such as boots, tapes, and fixtures. As a result, selective paths are validated before release to ensure precision.
Do you rework or strip coatings?
Yes, we do. However, the method depends on the coating chemistry and the risk profile of the components involved.
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Why Choose SCH Services?
Partnering with SCH Services means more than just outsourcing — you gain a complete, integrated platform for
Conformal Coating, Parylene & ProShieldESD Solutions, alongside equipment, materials, and training, all backed by decades of hands-on expertise.
- ✈️ 25+ Years of Expertise – Specialists in coating technologies trusted by aerospace, medical, defence, automotive, and electronics industries worldwide.
- 🛠️ End-to-End Support – Guidance on coating selection, Parylene grades, masking strategies, application methods, inspection, and ProShieldESD integration.
- 📈 Scalable Solutions – From small prototype batches to full-scale, high-volume production, SCH delivers flexible capacity that grows with your needs.
- 🌍 Global Reach – Responsive technical support and supply coverage across Europe, North America, and Asia.
- ✅ Proven Reliability – A strong reputation built on quality, consistency, and customer satisfaction across services, equipment, and materials.
📞 Call: +44 (0)1226 249019
✉ Email: sales@schservices.com
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