Electronics Forum | Wed Dec 02 14:54:52 EST 2009 | jdumont
Hi all, just wondering what type of brushes you all are using to manually touch up/apply your conformal coatings? We use an solvent based acrylic and do minor touch ups as they are processed. Occasionally we will have a bristle or two come off the
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 | Thu Feb 25 09:18:05 EST 2016 | tombstonesmt
Have you looking into acrylic? We've had huge success with boards with stringent keep out areas while achieving proper thickness. Acrylic requires a thinner or cutting agent to perform repair/rework. -TSS
Electronics Forum | Tue Apr 23 11:46:29 EDT 2002 | tombr
Howdy Netter's I was talking with my Paste and Flux Supplier about concerns of conforaml coating over "No-Clean" flux. Supplier informs me that this should not be a problem, but I wanted to poll the industry. 1. Does anyone here conformal coat ove
Electronics Forum | Thu Oct 06 10:09:24 EDT 2005 | jdumont
Humiseal 1B73 Acrylic, thanks for the suggestion.
Electronics Forum | Tue Dec 02 14:31:48 EST 2008 | dontfeedphils
Hey guys, just joined the site and I'm looking for some help. In our coating department we are running a Asymtek C-740 with a Jet and film coater. The coating that we are using is Humiseal 1B73 acrylic. The problem that we are having is that the C
Electronics Forum | Tue Aug 26 15:39:49 EDT 2008 | kpm135
I am not positive about this but I have been told that you cannot use acrylic and urethane coatings in systems that have had silicone run through them. It was explained to me that you can never fully get the silicone out of the existing system and th
Electronics Forum | Fri Jun 08 09:47:19 EDT 2012 | duso02
Umar, it may never be solved. Some coatings just do not stick to some substrates. Have you tried using a different coating? Even changing to 1B31S may be enough. Or 1B73 acrylic. Also, look into Nexus3C.com.
Electronics Forum | Tue Apr 14 16:43:48 EDT 1998 | Bob Barr
Chris, You may wish to contact Colin Burnie at SigmaVI in Melbourne, FL at 407-255-3559. They have coated boards for me using acrylic with very good results. I can't remember though if they do silicone. They have no problem with small lot sizes. B
Electronics Forum | Tue Sep 05 11:39:52 EDT 2006 | blnorman
We use silicones - better high temp for underhood. For environmental reasons we haven't used acrylics or urethanes, but would like to try them. Silicones don't like underhood fluids and are permeable to moisture. We also have the problem of UAW wo
