A thin, uniform protective coating formed from vapour, for circuit boards, components and devices that need an even barrier.
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Parylene is deposited as a vapour under vacuum and forms on the surface at room temperature, so it follows edges and reaches into small gaps that a liquid coating can bridge or miss. It suits assemblies and components that need a thin, even barrier.
Vapour deposition lets the coating form on all exposed surfaces, including edges and small gaps.
A thin, uniform layer protects against moisture and contamination without adding bulk.
Circuit boards, hybrid circuits and small components such as ferrite cores can be coated.
Used where moisture, chemicals and contamination are a concern, including aerospace, medical, instrumentation and engineering applications.
Areas that must stay uncoated are masked before coating.
Parylene C, N and D are different compounds. We will advise on the right one for your application.
Five steps from your enquiry to coated product.
Tell us the assembly or part, the quantity and the specification.
We confirm the process and parylene type, and send a quote.
Surfaces are cleaned and masked, with plasma treatment where the material needs it.
Parts are coated by vapour deposition under vacuum.
Masking is removed, the job is inspected and a certificate of conformity is supplied if required.
Related coating services and support.
Plain answers to the questions buyers ask before they specify a coating.
Short answers to what buyers usually ask first.
Parylene is the common name for the poly-para-xylylene family of coatings. It is formed from vapour under vacuum and polymerises directly on the surface, with no liquid phase.
Liquid coatings are applied by spray, dip, hand or gel and then cure. Parylene forms from vapour, which gives a thin, even layer. The better choice depends on the assembly and your specification, and we will advise.
They are different parylene compounds. C is the most commonly used, N is often chosen where good penetration or high-frequency electrical performance matters, and D is chosen for better high-temperature performance. We will advise on which suits your application.
Most materials that can withstand a vacuum can be coated, and adhesion promotion or plasma treatment is used where a surface is hard to coat. Tell us the materials and we will confirm.
It is harder to remove than most liquid coatings, because parylene resists solvents. Plan masking around anything that may need rework or access later, and tell us before coating.
Yes, if your order requires one. Tell us when you request a quote.
Send us the assembly or part, the specification and the quantity, and we will confirm the process and a quote.
Converting, programming, testing, and packaging electronic components for defence, aerospace, automotive, and medical manufacturers since 1992.
Tel: (01604) 491107
info@systemationeuro.com
Systemation Euro Automotive Ltd
19 Mansion Close
Moulton Park Industrial Estate
Northampton
NN3 6RU
England
