Hi guys, I haven't been cleaning windows very long, but this is the second time I have encountered pitting left behind from someone welding. The first time was on a historical building that had a new metal awning put up to cover the front entrance. The second time was on a new home. The builder hired someone to build a metal screen to block the AC unit from street view. Unfortunately both were within inches of the glass. First one was a transom style window, second was a normal 3' x 5' window.
At first I thought it was just dirt. When I used my scraper to try and remove the stuff it made that horrible scraping sound that sends fear into your blood! When I touch the spots, they are indentions into the glass (pits). But they also have tiny mounds of glass that seem to be melted onto the window glass? I brought them to the attention of the property manager, and told them I could not remove them. But I could clean over them using a wet rag, and a dry towel. Was not about to tear up my squeegee on these.
Would you guys have tried to do anything different?
I know it wasn't cement, I've run into that (no problem).
My guess is that replacement is the only option??
At first I thought it was just dirt. When I used my scraper to try and remove the stuff it made that horrible scraping sound that sends fear into your blood! When I touch the spots, they are indentions into the glass (pits). But they also have tiny mounds of glass that seem to be melted onto the window glass? I brought them to the attention of the property manager, and told them I could not remove them. But I could clean over them using a wet rag, and a dry towel. Was not about to tear up my squeegee on these.
Would you guys have tried to do anything different?
I know it wasn't cement, I've run into that (no problem).
My guess is that replacement is the only option??
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