When it comes to protecting sensitive electronics, medical devices, and mission-critical components, the choice of coating can define long-term performance. Two common options are Parylene coating and traditional conformal coatings such as acrylics, silicones, and urethanes. Each offers unique benefits β but which is right for your application?
For an overview of vapour-deposited protection and where it fits within modern electronics manufacturing, see our Parylene coating solutions.
What Makes Parylene Different?
Parylene is applied using a vapour deposition process, producing a pinhole-free, highly uniform film that coats every exposed surface β including hidden spaces and complex geometries.
This process helps deliver:
- Exceptional moisture barrier performance
- Ultra-thin yet durable protection
- Strong resistance to chemicals, solvents, and temperature extremes
Because it forms a truly conformal layer, Parylene is often selected where reliability cannot be compromised.
Our Parylene coating services are used where uniform coverage, low thickness, and high reliability are critical.
Where Traditional Conformal Coatings Excel
Traditional conformal coatings are typically applied by brushing, spraying, or dipping. They remain highly effective in many environments and offer practical advantages such as:
- Faster application and curing (process dependent)
- Lower cost compared to Parylene (in many cases)
- Easier rework and repair during production
For applications where cost sensitivity or rapid turnaround is key, traditional coatings can be the most commercially sensible option.
For applications where cost, speed, or rework access are priorities, our liquid conformal coating solutions remain a highly effective option.
Making the Right Choice
The right choice depends on your environment and performance requirements. If your device must endure harsh conditions or complex 3D coverage requirements, Parylene coating can provide unmatched protection. For less demanding applications, traditional conformal coatings may strike the best balance between performance, reworkability, and budget.
The right choice depends on environment, geometry, and compliance requirements, which is why many manufacturers engage our coating services for application-specific guidance and discuss the options.
SCH Services Ltd: Your Coating Partner
At SCH Services Ltd, we provide both Parylene and liquid conformal coating solutions β helping you select the right option for your project. Whether you need high-performance protection or cost-effective coverage, our expertise ensures your product is protected for the long term.
Learn more: Parylene coating services
