Electronics Forum | Thu Aug 27 11:35:07 EDT 2009 | davef
There are many possibilities: * Conformal coat is incompatible with surface residue on the board * Conformal coat is incompatible with solder mask on the board * Moisture is out-gassing from the board * Conformal coat is too thick and does not allow
Electronics Forum | Thu Jul 21 16:05:24 EDT 2005 | russ
This is kind of odd, I am accustomed to the Q.C. dept. verifying that criterias/specs have been met per engineering and contractual requirements and not identifying or implementing these specs. I believe that this philosophy aids in eliminating the "
Electronics Forum | Thu Feb 01 08:47:07 EST 2007 | davef
NASA is concerned about outgassing in high-vacuum environments. They select materials to minimize outgassing. http://outgassing.nasa.gov/og_desc.html
Electronics Forum | Wed Jan 31 17:01:34 EST 2007 | rw
I'm not that concerned about the solderability of the motor. Our customer is concerned about the outgassing of the conformal coat effecting the motor brushes. Silicone will break down into SiO2 and SiC will result from a spark between the brushes a
Electronics Forum | Fri Jun 05 00:08:32 EDT 2015 | acepa
Hi, I need a recommendation for a manufacturer on a reasonable cost conformal coating (silicone or other). This is a US domestic appliance PCB 9 volts only that must be dipped. Silicone or other could be unused. There is a standard RJ45 socket I wher
Electronics Forum | Fri Jan 26 13:26:30 EST 2007 | rw
We are developing a new product that requires conformal coating on the motor controller. We selected a silicone based conformal coat due to its ease of use. There has been disagreement among engineers as to its impact on the motor. We have contact
Electronics Forum | Fri Apr 21 17:46:29 EDT 2006 | SD
First of all, do not use kapton tape! It tends to cause a dewetting effect around the tape. A call to Humiseal will explain why. There's not really a blanket answer to your question.... Removing cured liquid mask can often result in a fillet ef
Electronics Forum | Wed Apr 19 11:50:05 EDT 2006 | amol_kane
Hi BJ, Everyone's favourite answer...it depends! If the volume if large, masking boots will save you both, time and money in the long run. Custom boots are relatively expensive to buy, but they pay themselves over time by savings on masking tape. ma
Electronics Forum | Wed Nov 06 19:59:39 EST 2002 | davef
Consider checking with your CC materials supplier for suggestions. It's to their benefit to help you do a good job using their product. Regardless of your current requirements, consider basing your workmanship on NASA-STD-8739.1 Workmanship Standar
Electronics Forum | Wed Nov 06 18:27:18 EST 2002 | MikeF
At this time we will be hand spraying acrylic, probably using spray cans until we decide on a spray gun or an air brush, and get one ordered. Our volume is too low to even consider an automated system. Our current requirement is on an item designed
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