Electronics Forum | Thu Mar 25 19:19:08 EST 1999 | Graham Naisbitt
| 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 spec
Electronics Forum | Fri Mar 26 13:02:18 EST 1999 | Scott McKee
Sorry, in the following message I'm agreeing with Graham - not Greg... | | 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 p
Electronics Forum | Tue Feb 18 13:08:05 EST 2014 | hegemon
Paralene, Paraxylene, or other vacuum deposited coating will require this method to remove the coatings. UR and Acrylics have solvents, as Rob above has mentioned. Plastic bead media and wheat chaff are ones that I know have been used for Paralene
Electronics Forum | Tue Jan 03 17:36:49 EST 2006 | MikeF
If you know you have cleaned any flux residues that were under there you could consider a bead of an electronic grade RTV, such as RTV3145. If you trap any uncleaned residues under there you could have long term reliability problems. But, like Dave
Electronics Forum | Wed Jan 03 21:20:22 EST 2007 | davef
Comments are: * General purpose RTV (RTV-108) releases an acetic acid (vinegar) during cure and corrodes copper, brass and sensitive metals. It is therefore NOT for use in delicate electrical or electronic applications. However, there is an electrica
Electronics Forum | Wed Jun 11 10:23:07 EDT 2008 | charliedci
Hi, > > we have to print a serial barcode on a low > volume PCB. For another module we just used our > laser printer and cut the labels to > size. > > However, those laser labels are easy to > rub off, and the new labels are much > smaller. >
Electronics Forum | Mon Sep 21 15:08:46 EDT 2009 | jdumont
Thanks for the reply. I didnt consider this too peculiar a situation however, since pretty much anyone who coats boards with a thin material like acrylic prob has come across this. Maybe its time to invest in some machine upgrades! Thanks
Electronics Forum | Mon Mar 29 04:36:49 EST 1999 | Graham Naisbitt
Just for the record folks, The customer I believe may be manufacturing stuff for refuelling rigs of various forms. This being the case, the coating would need to be resistant against fuels and oils. The UR material (at least ours!) is able to resi
Electronics Forum | Mon Mar 29 19:17:47 EST 1999 | Scott McKee
How true, AR would not be the right choice... Scott | Just for the record folks, | | The customer I believe may be manufacturing stuff for refuelling rigs of various forms. | | This being the case, the coating would need to be resistant against f
Electronics Forum | Thu Sep 09 10:50:59 EDT 2004 | agkettle
Does anyone have any experience with underfill of HD connectors? New customer wishes to underfill 6 HD connectors that have been pressed into PCB. Capillary action is causing the conformal coat to wick up into connector. Material is acrylic.