Power washing can create stains on glass caused by hard water, cleaning chemicals based on alkalies or acids, or even bleach reacting with paint. Once stains have baked on the glass surface, it is in need of restoration. Certain mineral acids like hydrofluoric, and sulfuric will permanantly etch the glass however. These acids are also used in cleaning bricks. I remember running into a company that used HF to remove paint from a building/home. Which is another application. Only to wind up etching every window. I will also never forget one resty job I performed which I got as a result of a power wash problem. It was a white haze left from a commercial product based on sodium carbonate and sodium metasilicate. These are alkalies, not acids. They did not etch the surface. But they caused a problem nonetheless. It was not a simple fix! I ultimately had to resort to diamond compound and paper towels;...by hand. So the next time you decide to power wash your vinyl awnings, or prep the exterior of the home for painting;...think again. You could be creating a real problem. The best thing is to have me check out the power wash solution. Then have the windows cleaned immediately after the powerwash.
Written by Henry Grover Jr
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2 comments:
I will also never forget one resty job I performed which I got as a result of a power wash problem. Daniel
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