ISO-Certified Subcontract Conformal Coating Services for PCB Assemblies
Fast, reliable conformal coating services—liquid and nano—from prototype to volume, with repeatable quality, ISO 9001/14001 processes, and full traceability.
- Lowest like-for-like price
- Global reach, local expertise
- ISO 9001 & ISO 14001 certified
- Industry-leading process control
End-to-End Conformal Coating—Done for You
SCH protects PCBs against moisture, dust, chemicals, and thermal cycling while keeping your build plan on schedule. We manage the full subcontract workflow—from job intake and documentation through to final pack-out and shipping—so your team can focus on production.
- Any Volume – Prototypes, NPI, and large volume capacity
- Full Assessment – Conformal coating process specification development
- Risk Analysis – Pre-production checks to ensure process integrity
- Defined acceptance criteria – Included in the Process Specification
- Full traceability – Batch records throughout
- Fast, reliable turnaround – Reliable solutions
Contact us now more information.
Our Capability: Application, cleaning and curing
We engineer each stage of the conformal coating workflow for precision, reliability, and repeatability—from surface prep to final cure.
Application Methods
- Robotic selective spray – tight keep-outs, high repeatability, high throughput
- Dip coating – uniform 360° coverage with controlled dwell/withdrawal
- Batch spray – rapid setup for prototypes and mixed lots
- Supporting services – masking (boots, tapes, custom 3D), de-masking, touch-up, depanel, packaging
Cleaning & Surface Prep
- Aqueous or solvent cleaning (matched to chemistry)
- Ionic contamination testing (ROSE/IC)
- Surface energy checks to confirm adhesion readiness
- Primer treatments where required
Curing & Thermal Control
- UV curing and ambient cure workflows
- Convection ovens for curing with logged, traceable profiles
- Stable environments for viscosity, temperature, and humidity
Our Capability: Coating Materials We Apply
We offer a wide choice of liquid conformal coatings and nano coatings to meet your performance, budget, and environmental goals.
- Acrylic (AR): cost-effective, easy rework, fast cure
- Polyurethane (UR): excellent chemical resistance and toughness
- Silicone (SR): wide temperature range, flexible for harsh environments
- UV-cure systems: ultra-fast processing with secondary cure as needed
- Solvent-based & low-VOC options to meet site and regulatory requirements
- Nano coatings (ultra-thin): hydrophobic/oleophobic barriers for complex geometries
Not sure which material fits your specification? Ask us—we’ll match chemistry to your reliability targets, process, and cost model.
Our Capability: Quality Control
Our quality system ensures every coated assembly meets specification with full traceability.
Inspection & Test
- Wet/dry film thickness (DFT) verification
- Adhesion testing (cross-hatch/tape)
- 100% UV/white-light inspection for coverage and defects
- Workmanship aligned to IPC-A-610 Class 3 and IPC-CC-830
Standards & Compliance
- ISO 9001-certified facilities; additional customer standards supported
- Experience with international requirements
- Documented processes, risk assessments, and audit-ready records
- Full ESD compliance
Process Control & Traceability
- Controlled viscosity, temperature, and humidity throughout production
- Recipe control, measurement monitoring, and logged cure profiles
- End-to-end traceability for materials, lots, and operators
Production Capability & Turnaround
- State-of-the-art application, curing, and inspection systems
- Stable cycles for high yield and low rework
- Fast turnaround to keep late-stage manufacturing on schedule
We know what high coating standards demand—and we deliver them, consistently.
FAQs
- Do you apply nano coatings as well as conventional liquids? Yes—ideal for ultra-thin protection on miniaturised assemblies.
- Can you help with material selection? Absolutely. We’ll propose options based on environment, cost, and rework needs.
- What cleanliness level do you require? We target low ionic contamination and verify surface energy for adhesion.
- How do you handle keep-out areas? Masking plans using boots, tapes, and custom fixtures; selective paths are validated before release.
- What film thicknesses do you run? As specified by the material, IPC standards and customer requirements.
- Do you rework or strip coatings? Yes—methods depend on chemistry and the risk profile of components.
Why Choose SCH Services?
Partnering with SCH means you gain more than just services—you access a complete, integrated Parylene solution:
- 25+ years of industry expertise in conformal coating and Parylene processing
- Full lifecycle support, from selecting the right grade to designing masking strategies and quality inspection plans
- Flexible scalability—from prototype runs to volume manufacturing
- Responsive support trusted by clients across Europe, North America, and Asia
- A proven reputation for quality, reliability, and customer satisfaction
📞 Contact SCH Services Ltd today to discuss your project. Let’s tailor a Parylene coating solution that fits your industry, your timeline, and your goals—first time, every time.
