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 Apr 22 14:16:22 EDT 2020 | rgduval
We prefered kapton tape to peelable mask, though, there is added time/effort to taping the boards, then removing the tape (if it's done hot, it can go pretty quickly). If you're at a volume where manual masking/mask removal is too time consuming, co
Electronics Forum | Wed Nov 23 07:39:14 EST 2005 | chunks
Shorted to the sheild or the BGA balls are shorted? Sheilds move a lot during reflow. If this is the case, place some adhesive or peelable solder mask on either side of the shield and baords to stop it from moving.
Electronics Forum | Tue Oct 31 19:34:30 EDT 2023 | dilogic
I have considered this solution, but syringe application is very slow and it's hard to control thickness. It's good for partial covering or applying peelable solder mask. We need to coat circular board ca. 10cm in diameter. Takes a while even with sp
Electronics Forum | Wed May 11 15:30:12 EDT 2005 | amejia
The problem is that we don't use a wave solder machine. Our process right now is that we mask the holes, let it sit at room temperature until it dries, then conformal coat the boards with Humiseal. And, we cannot have the boards ready the day befor
Electronics Forum | Thu Nov 22 10:02:42 EST 2001 | Adam
Guys Has anybody had experiences with plastic glue stencils good or bad ? I also have a couple of questions : 1. Can I use the same aperture design rules for plastic stencils as I do on my metal glue stencils ? 2. How repeatable is a plastic glue st
Electronics Forum | Mon Oct 11 08:34:52 EDT 1999 | C.K.
Thanks for the acvice, Dave and John. Like I stated above, I didn't feel comfortable with changing wave parameters since I knew that we'd be compromising our wave quality. I'll try the peelable mask thing, reprofile, and let you guys know what i fo
Electronics Forum | Fri Dec 03 18:04:52 EST 2021 | SMTA-64387687
Why don't you use peelable/washable solder mask on the SMT components next to the T/H pins? Then, you won't have to worry about keeping the tight tolerances.
Electronics Forum | Tue Dec 14 11:17:45 EST 1999 | John Thorup
Hello Mike You'll have to be a bit more specific. Do you mean permanent solder mask like the normally green material or a temporary mask like the peelable/washable material? John Thorup
Electronics Forum | Mon Dec 03 14:31:49 EST 2007 | realchunks
Peelable solder mask works well. Hand dispense and peel off after. Paint sticks work OK, but it depends on the mfger of the paint stick. In both methods you hand apply after screen print. Your Dek can be taught pads to get by. You may have to te
