Dear Maurice, Alcohol is a very "vertically oriented" cleaner. It cleans only a selected few types of solder paste. There are also numerous reports of fires and explosions associated with alcohol stencil cleaners. Plus, alcohol stencil cleaners use high pressure sprays that can bend delicate land mass areas of fine-pitch apertures. I recommend that you read the article located on the following URL. It was written by a stencil manufacturer (AMTX). He reviews the various stencil cleaning methods from an unbiased third party perspective. | I AM LOOKING INTO PURCHASING A STENCIL CLEANER FOR OUR SURFACE MOUNT PROCESS. WE USE ABOUT 6-7N STENCILS PER DAY, AND WE'RE USING A NO-CLEAN PASTE. WOULD LIKE A CLEANER THAT CAN USE ALCOHOL AS A SOLVENT, HOWEVER I AM OPEN TO SUGGESTIONS. DON'T REALLY PLAN ON CLEANIN GPCB'S IN THE MACHINE. WHAT ARE THE BEST MACHINES ON THE MARKET TODAY THAT FALL AT OR BELOW $17,000-$18,000?
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