Electronics Forum: conformal coating inspection (Page 1 of 113)

conformal coating over inspection stamps

Electronics Forum | Tue Feb 19 13:31:28 EST 2019 | SMTA-Joe

I have seen this issue with manufacturer markings stamped on PCBs. The ink just melts away as soon as CC touches it.

conformal coating over inspection stamps

Electronics Forum | Mon Feb 18 18:13:30 EST 2019 | slthomas

Has anyone found a durable, indelible inspection stamp ink? We have an extreme case of smearing/obliteration because we have the boards dip coated (Humiseal 1B73). The manufacturer of our stamps is zero help, i.e., the best I could get out of them

conformal coating over inspection stamps

Electronics Forum | Tue Feb 19 14:07:29 EST 2019 | slthomas

I figured it was just going to take a little searching to find a (more expensive) stamp that used an (more expensive) indelible ink. Not the case. Just can't find anything at all, and the stamp manufacturers say not to use any ink but what they provi

conformal coating over inspection stamps

Electronics Forum | Thu Jun 27 08:47:21 EDT 2019 | SMTA-John

Having success with Circuit Boards #432 Solvent Resistant Ink - Designed specifically for circuit boards. This medium dry ink is highly resistant to solvents .... It is also non-conducting. Note: this ink contains an aggressive solvent so should not

Conformal coating inspection

Electronics Forum | Wed Dec 01 15:53:59 EST 2004 | davef

uV light inspection indicates the "completeness" of coverage, but provides no measurement of coating thickness.

Conformal coating inspection

Electronics Forum | Wed Dec 01 07:17:10 EST 2004 | jdumont

I am not familiar with a WOOD light. The TDS for this material says it fluoresces under UV light....

Conformal coating inspection

Electronics Forum | Tue Nov 30 11:08:22 EST 2004 | jdumont

Hey all, we will be starting to coat our PCB's soon. I am looking for info on what type of UV light is needed to inspect the boards. We will be using Humiseal 1B73 Acrylic coating. TIA, JD

Conformal coating inspection

Electronics Forum | Tue Nov 30 12:16:20 EST 2004 | GS

WOOD Light, if fluorescent lamp you can use TL-08 color. (Philips, Osram, Tunsgram, etc) GS

Conformal coating inspection

Electronics Forum | Wed Dec 01 13:47:02 EST 2004 | gs

Wood or Black Light is the common way to call that UV ligth used ie. inside "disco" and used for many applications like to activate the fluorescent particels contained by conformal coating material,adhesives, paper money, etc. Any way ask for TL-08

Problem with conformal coating

Electronics Forum | Thu Feb 17 15:01:23 EST 2005 | davef

We're not familiar with your DYMAX #984-LVUF. The problem is not with your conformal coating. The problem is with your 0805 [and not all of 0805, probably just those from a specific supplier]. This lack of coverage of components is called dewetting

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