Electronics Forum | Thu Dec 04 12:24:35 EST 2008 | jdumont
We have the same Asymtek machine, same Humiseal product, same bubbling issue on touch ups. Ive found that very light pressure and a thinner mixture usually yields good results for us. Generally I dip the brush in the mixture and let it drip near wher
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 Jun 12 13:28:23 EDT 2009 | dontfeedphils
Asymtek in-line machine with the Jet head hands-down. And since you will be coating silicone you should virtually have no touch-up after it exits the machine because of the higher viscosity of this material.
Electronics Forum | Tue Jan 31 13:41:41 EST 2017 | tombstonesmt
Dow Corning 3-1953 is widely used when it comes to silicone based conformal coatings. Low odor, medium viscosity, can be atomized or needle dispensed. We have our operators fill syringe cartridges for any minor touch up.
Electronics Forum | Mon Feb 12 08:19:47 EST 2018 | dontfeedphils
Yep, that's already in the works, but boots by themselves don't address the wicking issue.
Electronics Forum | Fri Mar 26 12:59:51 EST 1999 | Scott McKee
| | I am looking into replacing another business division's Acrylic coating process with our Urethane coating process. Unfortunately, MIL-I-46068 doesn't differentiate AR/UR's performance, and the MFR data sheets don't match up at all (they each spe
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 | Thu Apr 20 09:26:10 EDT 2006 | amol_kane
I am using Silicone based boots with SR coating with good results. I Use Vinyl and Rubber boots with AR and UR coatings.
Electronics Forum | Thu Feb 23 16:31:09 EST 2012 | hegemon
Could be as simple as a pail full of UR coating and some wire hangars! Conformal coating is brushed on, sprayed on, and parts are dipped too, not to mention the wonderful vacuum process that is paralene. Gotta have a little more info as to your a
Electronics Forum | Mon Nov 08 13:38:37 EST 2004 | davef
You need to cover the chipped areas with a protectant coating, like epoxy. Look here:http://www.circuittechctr.com/products/115-1322.shtml We have no relationship, nor receive benefit from the company referenced above.
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