Electronics Forum | Thu Mar 31 20:50:13 EDT 2011 | tkirk
I disagree with the others about conformal coating before potting. Some of the softer urethane potting compounds can absorb water leading to caustic nastiness in the voids under the parts. Conformal coating can help fill/seal the voids and keep the n
Electronics Forum | Fri Aug 07 16:33:46 EDT 2020 | duso02
Feel free to contact me via email as I can offer you help with all aspects of the Conformal Coating process. Let's make sure that is right first.
Electronics Forum | Thu Jul 30 10:03:53 EDT 2020 | philc
If the PCB is thin, is it possible that the board is warping slightly during the curing process?
Electronics Forum | Wed Jul 16 00:15:38 EDT 2003 | iman
just out of curiousity, why the special nitrogen cabinet concerns for gold plated flex PCB? common "myth/fact" is gold is an "inert" coating layer that is not going to react with room environment conditions *that much?*. Am learning here, so would ap
Electronics Forum | Thu Jan 27 08:52:05 EST 2000 | Todd A. Braun
We currently use a silicon conformal coating on many of our manufactured circuit boards and are experiencing situations where the coating doesn't conform. For example, on the sharp edges of components and corners of leads it pulls away before curing
Electronics Forum | Tue May 06 15:53:52 EDT 2003 | bremerg
The coating is pliable and is air cured for 24 hours. The potting compound goes into the top assemnbly in 3 diferent stages. The circuit boards are coated using urethane type conformal coating. The unit is also placed into an ESS chamber -40� to +
Electronics Forum | Sat Sep 25 08:59:59 EDT 2004 | davef
IPC-HDBK-830, Guidelines for Design, Selection and Application of Conformal Coatings says: A conformal coating may have several functions depending on the type of application. The most common are: * Inhibit current leakage and short circuit due to h
Electronics Forum | Mon Aug 10 12:58:04 EDT 2020 | SMTA-64386637
We have found Acrylic CC under QFNs is a failure mechanism in thermal cycling. The coating acts as a wedge and causes solder joint cracks. We do not coat QFNs. To enhance reliability we have the vias plugged with solder mask. This eliminates some
Electronics Forum | Wed Apr 08 00:31:46 EDT 1998 | Mike Moninger
| I have a need to have a number (approx 20) circuit | card assemblies which need to have a silicone conformal | coating applied per MIL-I-46058. Are there any facilities | which can offer me this service? | Thank you, | Chris Fontaine | (603)885-
Electronics Forum | Wed Apr 08 00:31:31 EDT 1998 | Mike Moninger
| I have a need to have a number (approx 20) circuit | card assemblies which need to have a silicone conformal | coating applied per MIL-I-46058. Are there any facilities | which can offer me this service? | Thank you, | Chris Fontaine | (603)885-
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