did u try a good sharp razor scraping across the surface in combination with vinegar....let the vinegar soak for a bit on the surface before trying..this may work if the module glass is not micro textured. good luck.....
-- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 m 541-592-3958 o On Thu, Dec 30, 2010 at 8:29 AM, Tom DeBates <habite...@yahoo.com> wrote: > hello Wrenches, > I recently purchased some used modules. Unfortunately, they were mounted > near a railroad track and many have a film of rust on the front surface. I > have tried a few products; Dawn, Simple Green, vinegar (5% acidity), and > Krud Kutter to safely remove the rust. So far the vinegar seems to be best > when considering cost, disposal ,etc. But it still takes a good amount of > time and "elbow grease". Today I will try CLR. Has anyone else run into a > similar situation? If so, what products and/or methods did you use to remove > rust stains? > Awhile back I had to remove some urethane caulk from the face of module > and had to resort to a solvent-based chemical (acetone....yes, acetone) with > disastrous results..... > thanks, > tom > > Tom DeBates > Habi-Tek > 524 Summit St. > Geneva,IL. 60134 > 630-262-8193 > fax 630-262-1343 > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > >
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