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Old 11-20-2011, 04:34 AM
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Stripping Paint off bumper

I have a plastic bumper that needs stripped before i can repaint it, spider web cracking in factory paint. What is the best way to strip? Sanding is an option, but there are tons of little nooks and crannies to get into. Paint strippers? Sand blasting? Bumper is in great shape less the cracked factory paint.

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Old 11-20-2011, 05:02 AM
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Most of the shops I talk to, tell me they sandblast the bumpers if it comes back for a redo.

However, do not over look, depending on the car of checking out the cost of a new one from say Keystone.
I had a shop tell me the other day that he could get a bumper for a Toyota for something like $65 and like he said, for that it is not worth breaking out the blaster or sandpaper.

Three years ago best I could do on a rear bumper for a Sequoia was $503 though a customer that did all of Toyota's warranty work.
Six months ago he got me a new Toyota bumper for $103 (allow a couple of bucks) his cost for me.
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Old 11-20-2011, 07:42 AM
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Chances are those cracks go all the way into the plastic ...I wouldnt even concider stripping one unless it was something old and unavailable ...replace it...even if you do strip it you still have to remove it,prep it prime it sand it and seal it then paint it the material will be so thick that one slight bump and its all cracked again.....
theres a good chance its an after market bumper anyways and you certainly dont want to waste your time stripping a 50.00 bumper.
If its only cracked in a small area ,like the corner...it can can be repaied on the car and not be stripped at all just sand the paint off with some 180 then if you see the cracks go all the way into the plastic you can spray some good epoxy on it to fill the cracks,then just sand and paint.
sanding plastic will fuzz it up and when you prime it it'll be rough like sandpaper so before you prime a plastic repair sand it with 320 the job with be much easier and nicer
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Old 11-22-2011, 04:14 AM
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The bumper is in good shape. The paint is just cracked, most likely from bumping into something. What media do you recommmend for blasting? Regular sand? After the bumper is stripped, getting SPI adh promoter, SPI epoxy base then clear.
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Old 11-22-2011, 05:08 AM
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Is the whole bumber cracked???? that sounds like an adheasion problem ,if it is then you would want to try a few things first..get an air blower and try blowing the paint off, many times this will do it if you have enough pressure..
Whats the yr and make of the car ?
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Old 11-22-2011, 02:39 PM
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No, just the paint is cracked, spider webbed. It needs to be removed so the new paint will take without issues. It's a 1999 Mustang, original paint. The paint is all spider webbed on the top, fine everywhere else.
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