Electronics Forum | Tue Oct 19 11:28:05 EDT 1999 | Brian
Carol You're asking a helluva lot if you heat a PCB to 300�C and probably more in such an uncontrolled process. I'm surprised it is not irreparably damaged or, at least, discoloured. I don't think any solder mask is designed for this temperature. W
Electronics Forum | Mon May 24 12:05:53 EDT 2010 | deanm
Did you try Techspray Wondermask W? It is water soluble and can probably be transferred from the bottle to an EFD type syringe for dispensing (we use the P and the PL that way). As far as if it will swell through the reflow, I don't know. We don't us
Electronics Forum | Wed Jun 23 13:34:29 EDT 2004 | df_indy
I am four weeks into my new job, there always seems to be some issues here with PCB every week. Today while I was checking some assemblies with micro-scope, I found a lot of tiny bubbles/blisters on the board. They are just little dots if you look
Electronics Forum | Tue Dec 17 17:47:49 EST 2002 | Tim Marc
Dave, I�m talking about the 75% vertical fill of solder IPC 6.3 criteria (B), and 6.3.1 Fig 6-5. I also referred to the annular ring of the Plated-Through-Hole, being coated with solder mask. Semantics, yes I did refer to the Plated-Through-Hole (Sup
Electronics Forum | Tue Oct 19 12:05:42 EDT 1999 | Wolfgang Busko
Hi Carol, does that happen also when you solder them with an iron ? That�s what I did with some joints using hightemp solderwire and couldn�t notice anything you mentioned. What Brian and Dave said should be worth considering. good luck Wolfgang
Electronics Forum | Mon Aug 09 16:15:30 EDT 1999 | JohnW
| I am having cleaning problems when processing PCB's which have | TAIYO solder mask on them. After processing, hand soldering and | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other soldermasks
Electronics Forum | Mon Aug 09 18:03:28 EDT 1999 | Earl Moon
| | I am having cleaning problems when processing PCB's which have | | TAIYO solder mask on them. After processing, hand soldering and | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other solde
Electronics Forum | Wed Jan 05 15:01:50 EST 2000 | Brian E. Steelglove
A sharp knife and a steady hand. Sorry that is the only way I know because I have had to do it. Brian E. Steelglove
Electronics Forum | Tue Dec 17 17:22:45 EST 2002 | Tim Marc
Thanks Russ. You were right I looked one page too far. We can meet (A,B,C,D). To meet the 75% of (E) the annular ring will have to be scraped. Your help was much appreciated.
