Electronics Forum: water and wash (Page 4 of 90)

Mixing No-clean and water soluble processes

Electronics Forum | Wed Feb 24 11:28:09 EST 2010 | vleasher

I apologize for being so vague. It is a standard leaded process using ALPHA OM-5100 for the SMT. So would a reduction in wash temp result in less white residue?

Mixing No-clean and water soluble processes

Electronics Forum | Thu Feb 25 03:37:25 EST 2010 | xps

Sorry, but I don't know this brand. Anyway pay attention, because if the chemistry is resin based, is difficult to clean and the residuals may be hygroscopic. So, I only can suggest you to read the data sheet and follow the instructions by the solder

Possible to water wash no-clean solder paste boards?

Electronics Forum | Sat Jul 16 03:59:31 EDT 2005 | pyramus

Thanks Everybody!!!

Possible to water wash no-clean solder paste boards?

Electronics Forum | Mon Jul 18 00:00:35 EDT 2005 | adlsmt

I have nothing to add technically but we have been washing no-clean for years. Use very clean filtered DI water to avoid the white residue issue and some good detergent or sopanifier and you will get great results.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 01:43:09 EDT 2005 | pyramus

Solder paste used was Kester FL250M (no-clean).... components affected were only chip components 0603, no BGA & no IC components.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 13:45:32 EDT 2005 | slthomas

We've only seen it done by accident, and the result was a lot of white flux residue. You do need to make sure you get it all off, and to do so most likely means using a saponifier like sara suggested.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 01:31:03 EDT 2005 | Ivan R

Hi Pyramus you should`t have a major problem after you wash the board as my crew also run into this problem a few month ago ,, I wash them after but I suggestto run one first it depent who is the paste from I think.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 01:31:05 EDT 2005 | Ivan R

Hi Pyramus you should`t have a major problem after you wash the board as my crew also run into this problem a few month ago ,, I wash them after but I suggestto run one first it depent who is the paste from I think.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 00:54:53 EDT 2005 | Pyramus

Hi production encountered a problem today. There have been a mix-up of solder paste. We are currently running clean process in one side of board. Unfortunately when PD run the other side process they were able to used a wrong no-clean solder paste.

Possible to water wash no-clean solder paste boards?

Electronics Forum | Thu Jul 14 15:43:55 EDT 2005 | saragorcos

Yes, if not done correctly, you will have a mess on your hands and probably do more harm than good. It can be done, though and has gotten much more common and easier to do. If you are ordering cleaning chemicals, your supplier can guide you through


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