Molten metal on windows. How do I remove?

Catswhiska

Nephew was using an angle grinder to cut up some metal near to the house. I now have flecks of metal on the windows that won’t come off! Any ideas how to remove?

missile

I would try a car metal contamination remover, e.g. Auto Finesse Iron Out.

Catswhiska

Wow...good idea. Thanks will give it a try

FreeBear

Catswhiska wrote: »

Nephew was using an angle grinder to cut up some metal near to the house. I now have flecks of metal on the windows that won’t come off! Any ideas how to remove?

It will be fragments of metal and carborundum grit embedded in your windows. If it was steel that the nephew was cutting, these will quickly turn to rust and leave brown stains everywhere. On painted surfaces, a rub down & prime with a stain blocking primer & then top coat will hide the worst of it. On glass, not a lot you can do.

Various acid treatments may get rid of the metallic particles, but the grit won't disappear.