Electronics Forum | Mon Aug 21 19:38:33 EDT 2000 | Dave F
Eric: I�ll pass on the uV and ammonia, also. Thoughts are: 1 You�re correct that the temperature/humidity mix can be a big driver to latex peelable solder mask cure time, but don�t overlook material thickness. Dispensers put material in a very th
Electronics Forum | Wed Jun 22 15:03:12 EDT 2005 | patrickbruneel
The only thing ammonia can do is tarnish copper and make it more difficult to solder. And the higher temp in lead-free will discolor the latex (giving it a sticky surface), but the functionality of the mask will be intact. There should be greater co
Electronics Forum | Thu Jun 11 09:01:02 EDT 1998 | Dave F
| We have dispensed latex peelable solder mask, but want to begin printing. | What are your experiences with: | 1 Mask types ... latex versus vinyl? We're edging towards vinyl | 2 Stencil or screen? We're aiming towards stencil | 3 Metal or plas
Electronics Forum | Thu Jun 04 22:59:10 EDT 1998 | Dave F
We have dispensed latex peelable solder mask, but want to begin printing. What are your experiences with: 1 Mask types ... latex versus vinyl? We're edging towards vinyl 2 Stencil or screen? We're aiming towards stencil 3 Metal or plastic stenci
Electronics Forum | Thu Jun 20 08:31:36 EDT 2002 | davef
You can use a peelable, rather than a water washable, temporary solder mask? Points are: * Vinyl peelable is preferred over latex, because of lower residues. You should be very concerned about this since you are probably running a low residue proce
Electronics Forum | Tue Jan 17 16:43:03 EST 2006 | davef
If you are not washing and want to stay with a peelable mask the two basic types are vinyl and latex. Although we've seen some silicone and urethanes, they cost more. * Do not use latex peelable solder mask with a low residue soldeing process withou
Electronics Forum | Fri Mar 13 17:17:07 EDT 2015 | tombstonesmt
Hello everyone, Has anyone had success dispensing ammoniated latex masking using a valve? If so, what company and type of valve are you using? Our current supplier of non-ammoniated latex masking will no longer provide a container larger than an 8 o
Electronics Forum | Wed May 26 06:59:10 EDT 2004 | davef
Some peelable solder masks attack immersion finishes. It appears components in the peelable soldermask, such as ammonia, are not very friendly to these particular surface finish. [We've wanted to investigate the effect of mask application thickness
Electronics Forum | Thu Feb 25 14:52:52 EST 2016 | tombstonesmt
How thick are their requirements? A barrier can be made using peelable latex. That would then require manual or automatic dispense of latex to create a dam. Then you should be able to use an automated dispense system with a large orifice and flood
Electronics Forum | Tue Jan 27 10:54:45 EST 2004 | patrickbruneel
I would suggest trying an acrylic peelable mask. In most cases peelable temporary masks are latex materials. Since you use an acrylic conformal coating it makes sense to use a mask with the same make up to avoid incompatabilities. Link to acrylic mas
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