Electronics Forum: coat (Page 7 of 225)

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Mon Feb 06 16:15:08 EST 2017 | ttheis

Great, that is encouraging. I did order a few needle sizes from McMaster to try out when we get the machine setup. What do you recommend for clean up the equipment?

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Wed Feb 22 08:46:14 EST 2017 | westshoredesign

https://webaps.ellsworth.com/edl/Actions/GetLibraryFile.aspx?document=2922〈uage=en

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Wed Feb 22 09:17:08 EST 2017 | ttheis

Great; which do you recommend, 10, 20 or 30? Seems to me the 10 is most concentrated and 30 is least concentrated according to the flammability properties table. I'm not sure which would be best and I'd rather not try them all.

silicone conformal coat and electrical contacts

Electronics Forum | Fri Feb 02 08:36:14 EST 2007 | CK Flip

Wow, I cut first cut my teeth in the Industrial motor control industry. My 1st company made motor control products like variable speed drives, solid state overload relays, soft starts, etc. and in our shop, we used nothing BUT Dow Corning silicone p

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Tue Feb 07 12:26:14 EST 2017 | westshoredesign

Oh yeah, so we have a auger valve similar to that on one of our other machines that we use for dispensing SMT glue, and solder paste also. We have a conditioner that we flush it with at EOD when in use, then we just let it sit idle with the condition

silicone conformal coat and electrical contacts

Electronics Forum | Wed Jan 31 14:07:24 EST 2007 | electronhose

Material, fumes, cured or uncured, all are suspect. Silicone gets on an operator's hands, that operator handles components ( even a day or more later ) silicone is transferred to the solder connections = contamination. Process and workcell control

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Fri Feb 03 15:32:28 EST 2017 | westshoredesign

Not sure exactly what kind of coverage your looking to get but we use Dow Corning 3-1944, it's room-temp cure and rather thick, (think warm honey). But we have found it useful on several projects. http://www.dowcorning.com/applications/search/produc

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Tue Feb 07 10:25:37 EST 2017 | ttheis

Thanks for the tip. I'm still getting familiar with the machine by reading the manuals as I have time. Was wondering what type of solvent you use to clean the dispensing mechanism parts? Or do you not clean anything and simply dispose of the syring p

silicone conformal coat and electrical contacts

Electronics Forum | Tue Jan 30 20:38:32 EST 2007 | davef

NASA Internal Advisory: NASA-Issued Return to Flight Wristbands Contaminated with Silicone [snip] 10. PROBLEM DESCRIPTION: Recently we have been made aware of a silicone problem associated with the "Return to Flight" wristbands. These wristbands are

Conformal coat material dispensed through epoxy needle?

Electronics Forum | Fri Feb 03 17:14:49 EST 2017 | westshoredesign

You should have no problem. We use a very dated Asymtek machine (Automove 303) retrofitted for dispensing, air over syringe. It took time and some tinkering with. But all things considered, we're able to achieve remarkable results. I would recommend


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