I am always looking around on people sites to see what they offer for window cleaning. I came across a company that say they use a "restorative solution" which sounded like a water-down acid mix on all first time cleans. I read an article in eClean magazine that said repeated use of acids on windows take off layers of glass; causing distortion over time. my question is if this company is using a water-down acid on windows on all first time cleans should he be sealing them as well.
from Window Cleaning Resource http://ift.tt/1Pjc89H
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