Electronics Forum | Mon Jun 18 11:17:40 EDT 2001 | Howie
The adhesive type is the problem generally - latex adhesives used are not compatible with the silicone. Humiseal offer silicone compatible tapes & dots although they are quite expensive. I found a 3M product which is compatible with silicone based co
Electronics Forum | Tue Sep 27 08:22:27 EDT 2005 | Amol
I am using masking tape, the 3M high temp blue masking tape. the problem though doesnt seem to be related to the masking tap as i am seeing pin holes and eventual dewets over entire ckt board (its almost as if the board has chickenpox under black lig
Electronics Forum | Fri Mar 06 22:52:16 EST 1998 | Scott McKee
| I will be starting a conformal coating process soon, I am looking for any pointers on | 1) Best method for masking components, tape mask, liqued mask Masking tape or rubber caps will work, the ligued mask is too hard to remove. | 2) Which is best
Electronics Forum | Wed Aug 24 10:04:48 EDT 2005 | davef
Try; * CS Hyde; 1351 N Milwaukee Ave, Lake Villa, IL 60046; 800-461-4161 / 847-395-0325 Fax: 800-441-8063 / 847-395-0535 * CGS Tape, 12-270 Timberbank Blvd, Toronto, ONT M1W 2M1, CA; 416-561-9168 Fax 416-773-0262 http://www.cgstape.com
Electronics Forum | Mon Jul 23 16:21:54 EDT 2007 | mleber
We have used many ways of measuring but all are either messy, inconsistent or time consuming. We have done wet, glass slide dry, etc. We are currently using a kapton tape dot system. Spray the board, remove the dot and measure it, subtract the thick
Electronics Forum | Thu Apr 09 06:22:27 EDT 2009 | qualityguy
We aware of the extend time for cure, and in the CA activity we tried plasma etch and expose the sample to the current process, a screen test of 4 cycles -50C to 125C and the CC held in place. Std IPC tape test passed in current process and modifie
Electronics Forum | Mon Jul 20 15:53:10 EDT 2020 | robl
Tape test to check adhesion and multiple point thickness test - each board has 5 points per side documented for thickness testing & we measure pre & post coating thickness with an electronic meter. Also temp & humidty are also logged, and alarms go o
Electronics Forum | Thu Mar 27 16:40:45 EDT 2008 | slthomas
(or just some static-safe foam tape) I need to seal a wire terminal block to a board for conformal coating purposes. Currently we glue it to a shim and glue the shim to the board (yuck), but I want to use die cut gaskets if I can make it cost effec
Electronics Forum | Fri Feb 05 20:39:41 EST 2010 | localperm79
I've recently been placed in control of operations of our SCS conformal coat sprayer and I must eliminate problems with wicking of humiseal 1b73 into surface mount connectors while also trying to minimize masking as much as possible. We use a 55:45
Electronics Forum | Fri May 18 13:08:19 EDT 2012 | blnorman
I'll chime in here as well. If you have adhesion problems, 90% of the time it's contamination on the substrate (soldermask, flux residues, cleaner residues, etc.). Like Dave said, omega meter is a test for gross cleanliness, and it's OK for process
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