Electronics Forum | Mon Apr 07 22:07:25 EDT 2003 | davef
It depends on the carbon polymer that the fabricator printed on your board. It could be: * No wave soldering * Wave soldering with a peelable mask * Wave soldering ... probably one of the latter two. Watch it. Some temporary masks can affect the
Electronics Forum | Tue May 10 16:53:21 EDT 2005 | jdengler
For dots this size I have applied a thin coat of Chemtronics CM8, let set 10 mins then waved. The preheaters finished the cure before the board reached the wave. You just have to drill into the heads of who applies the mask that thinner is better!
Electronics Forum | Fri Feb 23 01:44:33 EST 2007 | josaf
now we use Solder mask from peters.de but it too thick so we can't use process for screen epoxy
Electronics Forum | Fri Feb 23 04:20:23 EST 2007 | dave
All, We have to run these boards thru Reflow then Wave. The mask looks like it has gel'd after reflow and then jsut burns after wave. Alan...
Electronics Forum | Mon Feb 12 11:18:55 EST 2007 | realchunks
Blob some peelable solder mask on the LEDs. They'll hold thru wave.
Electronics Forum | Thu Jun 20 08:47:51 EDT 2002 | Patrick
I would suggest you try the acrypeel 2000 peelable mask from Interflux USA. Try this link for more info http://www.interfluxusa.com/Datasheets/Acrypeel2000.htm Good Luck
Electronics Forum | Tue May 10 14:27:14 EDT 2005 | amejia
The holes on the circuit board which need to be covered are very small and it is more time consuming to cut to size and place with kapton tape. Thanks for the feedback.
Electronics Forum | Tue May 10 17:50:08 EDT 2005 | davef
Consider: * Changing your temporary solder resist [TSR] to a light cure. * Contracting with your board fabricator to apply the TSR. * Gaining better thickness control of your application process by silk screening the current TSR. * Forcing more air c
Electronics Forum | Thu May 12 08:24:05 EDT 2005 | patrickbruneel
Amejia, If your application is strictly conformal coating and no heat is applied to the board, the product seal and peel would be the solution see link http://www.interfluxusa.com/misc.html This product solidifies immediately on cooling The only dra
Electronics Forum | Thu May 12 14:52:13 EDT 2005 | amejia
Hi Patrick, I checked out the link and I think that just might be crazy enough to work. I'll have to research it a little bit more, but I think this would be the answer. Thanks a lot to everyone for all your help and suggestions.
