Electronics Forum | Fri Apr 17 14:08:00 EDT 2015 | davef
Humiseal says, "UV cure – These materials are also more difficult to repair as they are the most chemically resistant and mechanically tough of all conformal coatings. Removal is possible locally by using powder abrasion."
Electronics Forum | Fri Apr 17 08:52:03 EDT 2015 | charliedci
Thanks for the info Sarason. The UVCL is a Urethane. Did not want that hard of finish (for solder rework issues). We like the Acrylic as acetone will remove cured material for solder rework.
Electronics Forum | Thu Mar 31 10:14:06 EST 2005 | davef
There's some nice low-VOC uV coatings out there. We don�t use uV cured coatings, but try: * http://www.emersoncuming.com * http://www.dymax.com * http://www.mgchemicals.com * http://www.loctite.com * http://www.humiseal.com Be aware that uV co
Electronics Forum | Wed Jun 29 14:36:11 EDT 2005 | Steve
A customer of mine is using Chemtronics (Circuit Works) CW3300 Overcoat pen. This is an acrylic conformal coating. It cures at Room temperature. They need something similar that can be UV cured in a pen form. Any suggestions?
Electronics Forum | Mon Nov 27 13:36:41 EST 2000 | C.K.
You'd more than likely have repairability issues with the Acrylic based one. The acrylic-based finish is alot harder and more brittle versus the silicone. Some of the new silicones, you can just "peel" with your fingernail, while still getting reli
Electronics Forum | Wed Mar 30 14:51:19 EST 2005 | Cmiller
We are looking at switching to UV cure for faster throughput. Does anyone know of any cost effective coating manufacturers? The pricing we are getting back are around $250.00 a gallon in 5 gal pails. This is more than twice what we pay for our curren
Electronics Forum | Fri Oct 29 09:08:21 EDT 2004 | davef
Electrochemical migration under conformal coating: That's possible. Very few conformal coatings are water resistant. So, if you have ionic material on your board, standback. Uncured material under several IC: Materials like yours need moisture fro
Electronics Forum | Mon Mar 21 09:23:34 EST 2005 | sforman1
Some UV cure coatings do not have the correct rheology for sticking to small sharp corners. 984 is one of them. MicroCoat Technologies, Allen, TX makes one that works every time.
Electronics Forum | Wed Jan 29 16:14:16 EST 2003 | blnorman
One of the safest ways to dispose of urethane conformal coating waste is to cure it. Once it's cured it no longer is considered a hazardous waste. In the uncured state it is. We have tubes of epoxy adhesives (out of shelf life) that we do the same
Electronics Forum | Sun Apr 10 03:25:35 EDT 2005 | Peter
Normally, some conformal coatings do not have very good wetting properties, that should be basic function of a good coating material (the same reqirement as avoid bubbles during coating process)! For UV curing conformal coatings, you can try Lackwe
.gif)
