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printech, December, 2001
Re: Typewriter roller/platen washes


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From: Jeff Adrian (jeffadrian@johnroberts.com)
Date:14 Dec 2001 08:33:17


The solvent current being used is pretty typical for an application that is essentially the cleaning of raised type (like letterpress) with all its nooks and crannies. We too, used a solvent blend called "Type Cleaner" for our most difficult cleaning operations, and this blend also contained bad stuff. 

Our replacement cleaner is a blend of Lactol spirits (CAS 64742-89-8), Glycol ether PM (CAS 2807-30-9) and Ethanol 200 (CAS 64-17-5). This blend has a vapor pressure of 33.57 and a flash point of 20 degrees F. Not the absolute best, to be sure, but a significant improvement over the blend it replaced. None of the components are subject to the reporting requirements of Sect 313 of SARA Title 3. It is still important that this solvent be kept in a closed container and that other best management practices be followed. 

We have this blended for us locally. I'm not sure whether something similar exists as a branded commercial product, but this info might point you in the right direction.



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