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 | Fri Jan 26 16:47:35 EST 2007 | electronhose
IMHO I would avoid sprayed silicones like the plague. They can travel around your facility and cause solder wetting issues that you will never know the root cause for. Also found this e-drive article on using silicones around motors and relays. Loo
Electronics Forum | Wed Jan 31 14:07:24 EST 2007 | electronhose
Material, fumes, cured or uncured, all are suspect. Silicone gets on an operator's hands, that operator handles components ( even a day or more later ) silicone is transferred to the solder connections = contamination. Process and workcell control
Electronics Forum | Tue Jan 30 20:38:32 EST 2007 | davef
NASA Internal Advisory: NASA-Issued Return to Flight Wristbands Contaminated with Silicone [snip] 10. PROBLEM DESCRIPTION: Recently we have been made aware of a silicone problem associated with the "Return to Flight" wristbands. These wristbands are
Electronics Forum | Wed Apr 19 16:43:05 EDT 2006 | samir
Silicone-based coatings "repel" most foreign,non-compatible materials like peelable solder mask, and rubber or vinyl boots. The result is, uncured material around the vicinity of where the boot was. Trust me. Been there and done that. As a rookie
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 | Fri Feb 02 08:36:14 EST 2007 | CK Flip
Wow, I cut first cut my teeth in the Industrial motor control industry. My 1st company made motor control products like variable speed drives, solid state overload relays, soft starts, etc. and in our shop, we used nothing BUT Dow Corning silicone p
Electronics Forum | Wed Apr 14 17:13:08 EDT 1999 | Stephen Oltmann
| I need to cure conformal coat on a 19" x 15" board. The material needs 7 - 10 minutes at 100deg C, but I have limited floorspace so I'm looking for an oven with about 36 inches heated length and 18 or more inch wide belt. The material we are consid
Electronics Forum | Wed Apr 14 17:14:49 EDT 1999 | Stephen Oltmann
Check with BTU. They have dryers in the length you need. Good luck! | | I need to cure conformal coat on a 19" x 15" board. The material needs 7 - 10 minutes at 100deg C, but I have limited floorspace so I'm looking for an oven with about 36 inches
Electronics Forum | Sat Apr 17 11:56:04 EDT 1999 | Graham Naisbitt
Mike First, you MUST make sure the oven used is extracted. The coating will contain TDI. This is not nice. You would be better considering a silicone solventless. Try contacting HumiSeal. They had a material on the TAC line at Nepcon West that lo
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