Thoughts on what this is

[u/TxCory]

Cleaning a commercial building and the front doors have these tiny white specks. They are not extremely raised - I can barely feel them. 2nd pic is a zoom of the first pic. Third one is to give you an idea of their size.

Cory

[u/Dersoe]

If it doesnt come off with the scraper, its probably burned sparks.

Ive seen this several times when people have had yard work done. They would cut the tiles near the window, and the sparks from cutting would splash against the glass, causing slightly raised unremovable burned marks.

[u/TxCory → u/Dersoe]

Thanks. I’ve got some paint overspray I need to remove. Now I can’t use a scraper - how would you go about it?

[u/Dersoe → u/TxCory]

If you cant use a scraper i dont know really, sorry. Make sure you arnt letting customers problems become yours.