i was told u can get the scraches out of a face of a radio buy using sand paper .I am trying to find what grit to use ?
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Dale / Cory
use the highest grit possible that will remove the majority of the scratches... try above 1000 grit.. maybe start at 1500 or 1200... if you start lower then finish with 1500 or 2000 and then you can polish with a dremel and a buffing wheel with a little polishing compound.(jewellers rouge)
There is a product called Novus that is an excellent scratch remover for plastic. It comes in 2 versions, I usually just used the more coarse of the two. You can probably get it an NAPA auto or maybe Eastwood. If the scratches are deep, 600 and 1200 sand paper to get the deep ones out, as said previously the finer the better. A little water on the paper helps too. Be advised, some faces have screen printing on them, one hit with the sandpaper or Novus and they're gone. I used to do this to factory Delco's and the old time turntable lids (man, I'm dating myself with that one!) Another caution, sand evenly...if you sand in one spot too long, once you get it polished there will be a wavey spot. Feather your sanding to keep it smooth and flat.
Believe it or not If it is clear Plastic, Brasso works Great.
Also Try some Polishing compound for Auto Paint. Or even jewlery cleaner.
NEVER USE SANDPAPER!
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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
I use Double 0 Steel Wool first ...Then Turtle Wax Polishing Compound. It takes a little eye work too.
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
I use 3M Cut and Polish paste. Has a small amount of grit builtinto the polish and takes out any scratches or dull spots on paint, plastic or acrylic.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA