Hello all,

We are looking at qualifying a new conformal coating, and have a number of requirements for manufacturability and inherent properties, meets IPC-CC-830 requirements, certain CTI rating, etc., and we have put together a lengthy test plan that includes different types of boards, including those with sensitive circuitry, boards with low surface energies, and the like. But I wanted to see what other industry standards we need to check and make sure we're not missing anything.

I think SIR testing with our existing solder paste & wave flux is the big one, and I was planning to use B-24 test coupons. We are also doing adhesion testing, checking against IPC-A-610 requirements, HASS testing, final testing, as well as various checks for manufacturability (such as viscosity and ability to coat with our selective spray equipment, good wetting at lower surface energies, ease of rework).

What else are we missing? Any other IPC test methods or compatibility checks to be concerned with?

Thanks!
Ryan Elson
Manufacturing Engineer
Bently Nevada
Baker Hughes, a GE company
[log in to unmask]<mailto:[log in to unmask]>