In modern electronics and high-reliability assemblies, one of the most overlooked yet critical steps is masking—protecting areas that should not be coated during the conformal coating process. Done poorly, masking becomes a bottleneck: misalignment, rework, and delays can cripple throughput. But with custom pre-cut masking shapes, you can turn that bottleneck into a breakthrough.

The Masking Challenge
When applying conformal coatings or advanced materials like Parylene, every pad, connector, or sensor must be protected precisely. Traditional manual cutting of tape is slow, inconsistent, and often unreliable.
The result?
– Masking residue left behind
– Shrinkage or degradation under solvents
– De-wetting caused by silicone contamination
– Tape lifting or bleeding into protected areas
These issues reduce yield, increase rework, and slow down production.
The Advantage of Custom Masking Shapes
At SCH Services Ltd, we provide custom masking shapes designed specifically for conformal coating processes—including our own coating services. By using the same solutions we supply to our customers, we ensure accuracy, consistency, and quality at every stage.
Benefits of custom shapes include:
– Residue-free removal with no damage to components
– Solvent and chemical resistance for use in harsh environments
– Silicone-free materials to avoid contamination and coating defects
– Clean, reliable adhesion that prevents bleeding or lifting
– Ready-to-use sheets for fast application and reduced operator time
Because we rely on these shapes daily in our own conformal coating services, we know firsthand how they improve throughput, reduce defects, and eliminate bottlenecks.
From Bottleneck to Breakthrough
Here’s how custom masking shapes change the game:
CHALLENGE | MANUAL MASKING | CUSTOM MASKING SHAPES |
Cutting & prep time | High | Minimal – peel & place |
Consistency | Operator dependant | Uniform every time |
Risk of rework/defects | High | Low |
Cycle efficiency | Slow | Streamlined |
Yield loss | Frequent | Reduced |
By standardising masking with custom shapes, conformal coating production flows faster, more reliably, and with fewer errors.
SCH Services Ltd: Proven in Our Own Services
Unlike suppliers who only sell materials, SCH Services Ltd actively uses these custom masking shapes in our own conformal and Parylene coating services. This means our products are proven daily in real production environments. Customers benefit from the same quality, speed, and precision we demand for our own clients.
When reliability matters, masking isn’t a bottleneck—it’s a breakthrough.
For more details visit: https://www.conformalcoating.co.uk/materials/masking/