Simichrome is good

by Alfred John, Monday, May 06, 2013, 14:40 (4164 days ago) @ FOG

I have seen the inmates at a state prison polish out scratches in various eye glasses, sunglasses and other assorted objects with clear plastic lens or covers. They use a soft cloth, "T-Shirts" and plain old Colgate toothpaste. Of course they usually have lots of time to polish them clear. One other trick I picked up while working in a laboratory was to use a "rosebud" tip on oxygen/acytalene torch while rotating the piece on a turn table. They were making some windows from clear polycarbonate sheets about three inches thick, cut a foot or so in diameter, and had to be cut with a concave indentation on one side and the other side flat with proper optical qualities, they made about 20 of them. They were trying all kinds of polishing compounds and abrasives to get the finish and one guy in the shop told them to try heat. It worked very well. Just saying. ATB