Electronics Forum: white soldermask cleanning (Page 1 of 40)

white residue

Electronics Forum | Wed Jan 27 19:42:34 EST 1999 | parag palshikar

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperature a

Re: white residue

Electronics Forum | Wed Jan 27 23:29:28 EST 1999 | parag palshikar

| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Re: white residue

Electronics Forum | Wed Jan 27 21:02:53 EST 1999 | Dave F

| i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperatu

Re: white residue

Electronics Forum | Thu Jan 28 08:58:10 EST 1999 | Peet

| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Re: white residue

Electronics Forum | Fri Jan 29 05:14:06 EST 1999 | Graham Naisbitt

Hi guys, I really am at a loss to understand this one. It would appear that there may be some reaction between the flux and the resist? Or maybe you have an OSP on the board that is reacting during soldering? As a fast fix, maybe you should try a

Re: white residue

Electronics Forum | Thu Jan 28 08:42:43 EST 1999 | Dave F

| i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperatu

Re: white residue

Electronics Forum | Wed Feb 10 12:52:21 EST 1999 | Dick Casagrande

|I'm getting in a little late on this but my 2 cents is: We have been using no-clean flux for a few years now but up till last month were still cleaning (the white residue) our boards (all thru hole). Finally did some investigation and found the flux

white residue after wash

Electronics Forum | Fri Apr 03 02:52:42 EST 1998 | Jacqueline Coia

At this moment in time we are using water soluble solder paste on our PCBs these are cleaned using water only, agitated with ultrasonics. After drying a white/grey residue is left around solder joints. Reflow profile is fine and a reliable wash proce

Re: white residue

Electronics Forum | Thu Jan 28 09:45:44 EST 1999 | parag

| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Re: white dirty solder

Electronics Forum | Thu Jan 15 15:13:50 EST 1998 | justin medernach

| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct

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