04-29-2007, 06:34 AM
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BMW Detailer
Location: Overland Park Kansas
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Join Date: Nov 2006
Posts: 269
Mein Auto: 330Xi and 03 Mach 1
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Quote:
Originally Posted by LeMansX5
So what is the best method to treat a 6" vertical scratch(from parking close to garage door) on plastic bumper, deep enough to feel with nails? Shall I start by using a 3000 grit on porter cable and then compound. Any recomendation for compound?
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If it's deep enough to feel with a fingernail, it might have scratched to the base material. You could certainly try 3000 grit and follow that with compound. Above all, take your time and work the area with the porter cable. Careful not to get the plastic too hot!...check the area you are working with the back of your hand for temp. If that doesn't work, you will be faced with building up the gouge using touch up paint (I'd recommend a hardener mixed to speed the process).
Toto
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