Electronics Forum | Wed May 09 03:13:06 EDT 2012 | umar
I had send my coating board to the test lab for adhesion coating test. 3 times send, the result 3times fail. The coating chemical use is Humiseal 1B31. The process is clean the boards at washing process use the Vigon A200 saponifier mix with DI wate
Electronics Forum | Tue Jun 09 23:00:53 EDT 2009 | davef
Suppliers are: * Asymtek; 2762 Loker Ave West, Carlsbad, CA 92010; 800-279-6835 760-431-1919 F760-431-2678 asymtek.com * Ultrasonic Systems; 135 Ward Hill Ave, Haverhill, MA 01835; 978-521-0095 F978-521-7023 ultraspray.com sales@ultraspray.com Stepha
Electronics Forum | Thu Jan 22 03:25:26 EST 2009 | stevewilde
What masking tape can people recommend for masking the board when conformal coating. I am using a PVA autocoat machine and humiseal 1B31. Current tape, is leaving residue on board when used to hold link wires down whilst glue cures and also when used
Electronics Forum | Mon Aug 25 14:55:51 EDT 2008 | grics
I have a question for the manufacturing masters... We are going to start running test trials/DOE of a Urethane Coating (Humiseal 1A33) and I am not sure what to expect. From what I understand, urethane coating is pretty difficult to work. It is supp
Electronics Forum | Thu Dec 22 10:51:12 EST 2005 | killer1994
Yes, I have been using it for 4 years now. We have the 4 axis, 3 head, 2 lines. Inspection station and ir oven. I have to say you will NOT get better support anywhere in this industry than from PVA. Their crew is top notch, always going above and bey
Electronics Forum | Fri Mar 20 10:31:19 EST 1998 | Mick Jones
| 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 | 2) Which is best Spray or Dip? | 3) Compatiblity with no clean solder paste (flux residue) | I h
Electronics Forum | Wed May 11 15:30:12 EDT 2005 | amejia
The problem is that we don't use a wave solder machine. Our process right now is that we mask the holes, let it sit at room temperature until it dries, then conformal coat the boards with Humiseal. And, we cannot have the boards ready the day befor
Electronics Forum | Tue Feb 03 13:39:08 EST 2009 | grics
Good morning Jamie. I work at a CM and can offer some input on process flexability. I do not have any data on how reliable the coating is but I can say that they are both very difficult to control. Will you be selective coating or full coating? Ho
Electronics Forum | Tue Jul 31 10:16:59 EDT 2012 | silverbullet
We are in the process of revamping our conformal coating room. Presently, we have a C-740 Nordson Asymtek coating machine that sprays most of our boards with Dow Corning 2577. We are spending a lot of time masking boards and are thinking of upgrading
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