Electronics Forum | Tue Jul 24 13:41:41 EDT 2007 | jdumont
We just measure the coupon before and after. We are always btw .002" - .003" acrylic. No auditor will say a word if you are doing this much control. Unless its NASA I suppose..... we've never had a problem with any of the avionics guys doing this tho
Electronics Forum | Mon Oct 15 12:50:10 EDT 2007 | russ
have you looked at any of the industrial supply companies? They sell rubber strips/sheets/tubes of about every makeup there is, I would bet they would have what you need. Russ
Electronics Forum | Mon Mar 23 19:18:14 EDT 2009 | Kou Vang
1. You can use this Brady label (p/n THT-21-426) with a laser printer. 2. You can use the Industrial Sharpie, or the label above.
Electronics Forum | Wed Apr 30 12:25:09 EDT 2008 | realchunks
Paraffin wax. Before you laugh, check it out. http://en.wikipedia.org/wiki/Paraffin_wax#Wax Only draw back is you have to melt it, but works well on electronics.
Electronics Forum | Thu Oct 02 09:35:42 EDT 2008 | msangabriel
I have one brand new UV oven and 2 used ones. We used to cure Dymax conformal coating in this plant. We are selling those ovens.
Electronics Forum | Mon Jan 19 09:10:17 EST 2009 | stevewilde
Thank you for all of the advice. I am using the extended spray for these cards. Humiseal have recommended using their own thinners 600 instead, so will run some trials with this and also the humiseal pre-mixed material (at the moment we mix our ow
Electronics Forum | Tue Feb 03 11:42:54 EST 2009 | lmartenson
We use PVA and I have had bubbles that came from the pressure in the pressure pot being to high. Also the material filter was slightly clogged. I'm not sure of your setup hope this helps.
Electronics Forum | Tue Feb 03 13:47:59 EST 2009 | grics
I would also suggest looking at your ramp rate in the cure oven. We noticed that accelerated heating increased the "gas out" of the solvent. We run 1A33 and and do not exceed a .5/degC ramp rate.
Electronics Forum | Thu Apr 09 06:28:11 EDT 2009 | qualityguy
We have different Solder mask 'gloss' and 'satin' the gloss has a surface energy =40 dynes. The test evidence to date is strong correlation between surface energy, mask type, HASS failure
Electronics Forum | Thu Apr 09 18:55:49 EDT 2009 | gregoryyork
seen it many times before when the resist is not cured at manufacturing. get PCB man to check with K type thermal couple that boards ARE in fact cured. this is normally 155C ON board temperture not oven setting Cheers Greg
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