Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Conformal Coating Query

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#58336

Conformal Coating Query | 12 March, 2009

I have Through Hole Assembly Boards that require Conformal Coating but the customer did not specify which area or parts should not be coated. Upon asking them they are also not sure about it.

I have Transformers, PLCC's on a socket, IC's on a Socket as well as Test Pins.

Can you help me if those need coated too?

thanks

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#58337

Conformal Coating Query | 12 March, 2009

We don't coat anything in a socket or any test points or connectors, switches, leds, wire holes, grounding pads good luck

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#58338

Conformal Coating Query | 12 March, 2009

If you are looking for someone to coat these assemblies. I would welcome this oppurtunity to quote or even coat one as a first article (free of charge or course). As we are a coating house that uses all types of coatings as well as performing Parylene coating.

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#58341

Conformal Coating Query | 12 March, 2009

Mask: * I/O connector contact surfaces * Bus connector contact surfaces * Configuration jumper blocks * Test points * Surfaces that contact heat sinks (heat sinks are removed prior to coating) * Board mounting holes * Adjustable potentiometers * Pivoting ejector levers * Toggle switches * Fuses * EPROM * LED

Get: NASA-STD-8739.1 Workmanship Standard for Staking and Conformal Coating of Printed Wiring Boards and Electronic Assemblies, August 6, 1999 http://www.goes-r.gov/procurement/flight_documents/NASA-STD-8739-1.pdf

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