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solvents for cleaning metal stencils

#31050

solvents for cleaning metal stencils | 21 October, 2004

What are the most common solvents/processes being used to clean paste from metal stencils? Any heat?

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#31061

solvents for cleaning metal stencils | 22 October, 2004

Most glue suppliers recommend chemicals and methods for removing the product from stencils. What does yours suggest?

Further, search the fine SMTnet Archives for background discussion.

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#31175

solvents for cleaning metal stencils | 1 November, 2004

What I am really after is what is recommended to clean the paste from the stencil. What works best? What is really used in common practice?

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RDR

#31177

solvents for cleaning metal stencils | 1 November, 2004

See Daves Answer above and change it to "paste mfgr." Also most all of the cleaning companies have chemistries. Are you cleaning noclean or W.S.? IPA works if you clean them manually, Or the chemicals that the Ultra sonics mfgrs recommend. Search the archives for "cleaning solvent"

Russ

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#31240

solvents for cleaning metal stencils | 5 November, 2004

Most metal stencils today are cleaned with a water based cleaning solution. 3 choices are most typical: (1) Water only for water-soluble paste (2) Water + Organic for rosin and no-clean (low residues. This affords lower temperatures and is easier to dispose. (3) Water + Alkaline Saponifier for rosin and no-clean (low residues). This affords greater aggressiveness on harder to clean "no-cleans" and needs to be rinsed thoroughly. This can be harder to dispose.

All of these choices are compatible with spray in air systems.

Hope this helps,

Steve Stach Austin American Technology www.aat-corp.com (+1) 512-335-6400

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