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I need to clean polyurethane and PMMA, to make mirror surface on them by silver coating. The surface has to be very clean for the chemical coating procedure. One of the steps is cleaning the surface with nitric acid. A slight change in machanical properties due to the acid-plastic material...

Can I clean plastic materials with nitric or sulfuric acid?

Thanks for the information. For my application the white paint may be good enough.

I want to have a thin coating (a few microns) of titanium dioxide on a plastic plate, to make high refractive index surface. Assuming titanium dioxide is in powder form, can I mix the powder with some liquid resin to apply on the plate? Is there any ready-to-apply titanium dioxide in liquid...

Mike, No, I cannot use ordinary mirror. The surface is a part of an optical device. It doesn't have to give mirror-like image, as far as the surface reflects light well. Thanks. Peter Red Bank, NJ

I need to make a mirror-like (shiny) surface by painting some chemical on a transparent plastics (like plexiglass) or a regular glass plate. One side of the plate should be shiny, when looking from the un-painted side(not on the top surface of the painted side). I tried a chrome finish paint...