Electronics Forum | Tue Mar 19 13:02:49 EDT 2013 | caurbach
We've used masking tape and peelable (pink) mask to mask our boards before conformal coating for a long, long time. This is a huge time sink, and increases our lead times (particularly because of the cure time for the pink mask). What are other com
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.
Electronics Forum | Thu May 27 15:59:30 EDT 2010 | mikesewell
ATS-667 tape. You can buy direct http://www.ats24.com/index.cfm?fuseaction=content.display&contentid=50 or through distribution such as All-Spec. Polyester film with rubber resin adhesive (no silicone) = clean mask lines. Call for a sample.
Electronics Forum | Tue Sep 27 08:22:27 EDT 2005 | Amol
I am using masking tape, the 3M high temp blue masking tape. the problem though doesnt seem to be related to the masking tap as i am seeing pin holes and eventual dewets over entire ckt board (its almost as if the board has chickenpox under black lig
Electronics Forum | Thu May 26 09:54:49 EDT 2016 | swag
Not exactly SMT but something I recently did that might save you lots of time and money: Complex high $ assy that has 25+ conformal coat keep out areas - most different shapes. All locations are dimensioned on customers' print. We tried a one piec
Electronics Forum | Tue Mar 19 13:32:21 EDT 2013 | rgduval
In the past, I've used kapton tape for masking, as well as masking tape and solder mask as you've described. I've also used dummy connectors, or connector caps to cover connectors/pins. In the end, though, I'm not sure any of these methods decrea
Electronics Forum | Thu Jul 03 11:36:57 EDT 2003 | Ron
Have you considered a temporary water washable solder mask. Elvaway solder mask tapes have been protecting Gold Fingers during soldering and simply wash away in a water wash process and leaves no residue.
Electronics Forum | Mon May 11 13:36:11 EDT 2009 | duso02
It really depends on what method you used to mask. Liquid mask, tape, rubber boots, etc. It is something most learned thru trial and error, much like running the parylene machine. It's never as easy as loading it up, turn it on and watch it go!
Electronics Forum | Sun May 30 09:17:24 EDT 2010 | davef
We use 3M Scotch #42 tape For more look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=57849
Electronics Forum | Fri Jul 21 01:54:35 EDT 2023 | auriga2001
Agree, Kapton. But that is a brand made by DuPont. If you don't have access to that specific brand. The generic term is polyimide tape.
