Electronics Forum: conformal coating de wetting (Page 1 of 6)

Problem with conformal coating

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

PCB conformal coating

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

Conformal coating (again)

Electronics Forum | Mon Jan 26 07:27:43 EST 2004 | loz

I have a product that has earthing/positioning holes, as they are to be used for earthing purposes they need to be free from conformal coating. This pcb is double sided. I have used spot/peelable mask to protect these holes. However when the conforma

Humiseal 1A33 conformal coating using automated atomized spray

Electronics Forum | Tue Jul 03 01:54:42 EDT 2018 | rdhiman1

Reaching out to all conformal coating experts, please help! While setting up conformal coating using the automated atomized spray, we observing issues associated with conformal coating wetting on the following regions: 1) Component edges 2) Metalli

Conformal coating mask dots and halos

Electronics Forum | Mon Mar 01 09:17:56 EST 2010 | duso02

Hey....I think it might be the silicone adhesive! LOL Yeah, that'll do it. We use simple Shercon paper dots. Work like a charm. No evidence of "de-wetting".

silicone conformal coat and electrical contacts

Electronics Forum | Fri Jan 26 16:47:35 EST 2007 | electronhose

IMHO I would avoid sprayed silicones like the plague. They can travel around your facility and cause solder wetting issues that you will never know the root cause for. Also found this e-drive article on using silicones around motors and relays. Loo

What type of brush for hand conformal coating?

Electronics Forum | Thu Dec 03 07:37:44 EST 2009 | duso02

The quality of the brush is most important. We use artist brushes from Torrington Brush Works. Sable works best but are the most expensive. We use more camel hair. They work best for us as we "hand coat" hundreds of boards a week and go through many

Conathane CE 1155-35 Conformal Coating Issues

Electronics Forum | Mon Sep 26 16:48:32 EDT 2005 | PWH

Are you using masking? Conformal coat will de-wet (no pin holes usually, though) due to masking tape adjacent to affected areas if the tape glue chemistry isn't compatible with the conformal coat.

Immersion Silver Contaminants

Electronics Forum | Wed Feb 12 22:02:47 EST 2014 | rober864

Has anyone ever encountered contaminants from the immersion silver process, whether it be from the board house or not...as it relates to conformal coating. The failure mode is severe de-wetting of acrylic conformal coating. All over solver resist, to

Conformal Coat Thickness

Electronics Forum | Mon Jul 23 17:49:04 EDT 2007 | davef

We know nothing of DeFelsko, but do understand how they distinguish between the solder mask and the conformal coat. DeFelsko manufactures hand-held, non-destructive coating thickness gages that are ideal for measuring the dry film thickness of confo

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