Electronics Forum | Thu Jul 03 17:29:42 EDT 2008 | mikesewell
Re: item 3 - there are ultrasonic thickness machines (Panametrics makes one) that can measure coating dry with a small transducer head. A little pricey for ones that measure reliably in the .003" +/- .002" range.
Electronics Forum | Wed Jul 02 02:46:44 EDT 2008 | tang
Hi Guys, I have few question would like to ask regarding pcb conformal coating: 1. Can I know which masking material is the best for easy apply, fast cure, fast & easy to remove after coating & baking. And no chemical reaction which will whiten the
Electronics Forum | Sat Aug 07 02:28:20 EDT 2010 | raghu
We have PVA 350 benchtop dispensing equipement with humiseal 1A33 CC material. is there any moisture measurement process in conformal coating material?
Electronics Forum | Thu Nov 23 06:05:24 EST 2006 | 1B73
The solid content of 1B73 is too low, especiall when you add large amount of thinner, not easy to get enough coating thickness.
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 | Mon Sep 05 16:24:09 EDT 2016 | davef
inspect => conformal coat ... and standards are aligned with that philosophy. I can imagine doing a good job inspecting assembly after being coated with particular coating thickness, optical properties, lighting conditions. Ultra-thins are so thin
Electronics Forum | Mon Jan 03 00:30:30 EST 2011 | raghu
Contact your distributor for the coating or > Humiseal directly. Humiseal has had a recent > issue with batches of 1B31. The specific problem > is lack of adhesion, which is what you have as > well. You need to find out if your batch # is one >
Electronics Forum | Tue Nov 22 21:08:45 EST 2005 | davef
CMI International says, there are five basic, non-destructive methods of determining coating thickness. Each method was devised to achieve cost-effective, accurate, and repeatable results. Those methods are: * X-Ray fluorescence * Eddy-current * M
Electronics Forum | Thu Jul 05 22:56:53 EDT 2007 | gyverlo
Hello Sirs: Recently we are having an issue with environmental stress (high humidity or moisture), so we decide to apply conformal coating on our motherboard to protect via holes. According to IPC-A-610D, spec of thickness for type AR is 0.03~0.13 m
Electronics Forum | Fri Jul 06 10:08:21 EDT 2007 | blnorman
The coating thickness is more a property of the individual coating itself. The 0.03 - 0.13 is based on average properties of acrylics in general. It's like trying to pour 3 mils of motor oil on a table. The material will find it's own thickness.
.gif)
