Was surfing the web the other morning and came across an article on restoring plexiglass. The questioned asked was about rear window plexiglas in a convertible, but it should aply to the sheet version as well.
As long as it's not cracked or crazed, Plexiglas can be restored to new condition. All you have to do is sand and polish it as you would a fine paint finish. Start with a very fine grit sandpaper such as 1000 or 1200 and wet sand the Plexiglas with a sanding block if it's flat or sanding sponge if it's curved. When the scratches are almost gone, switch to 1500-grit paper and wet sand until the scratches are entirely gone. Then use 2000-grit paper to eliminate the 1500-grit sanding scratches. Use a slow speed (about 700 rpm) machine polisher fitted with a compounding pad and fine grade compound to "rub out" the Plexiglas.
As with paint, after you have compounded away all sanding scratches, move on to a polishing pad and fine polish. Finish up with a swirl mark remover such as 3M Finesse It II and your Plexiglas should look perfect.
For what it's worth.
Bill
As long as it's not cracked or crazed, Plexiglas can be restored to new condition. All you have to do is sand and polish it as you would a fine paint finish. Start with a very fine grit sandpaper such as 1000 or 1200 and wet sand the Plexiglas with a sanding block if it's flat or sanding sponge if it's curved. When the scratches are almost gone, switch to 1500-grit paper and wet sand until the scratches are entirely gone. Then use 2000-grit paper to eliminate the 1500-grit sanding scratches. Use a slow speed (about 700 rpm) machine polisher fitted with a compounding pad and fine grade compound to "rub out" the Plexiglas.
As with paint, after you have compounded away all sanding scratches, move on to a polishing pad and fine polish. Finish up with a swirl mark remover such as 3M Finesse It II and your Plexiglas should look perfect.
For what it's worth.
Bill
