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Old 01-31-2006, 05:32 AM
starquest starquest is offline
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Prepping urethane bumpers and fiberglass parts?

I'm at the point in my restoration project to start prepping the urethane (I believe they are urethane) bumpers and other plastic parts of the vehicle.

This is my process for the STEEL parts (as recommended from you guys on these message forums):

1. strip with aircraft stripper
2. sand with 80 grit
3. clean/tack
4. SPI epoxy
5. filler
6. re-epoxy
7. SPI 2K
8. block

So what is the process for the plastic parts? Can I continue using the aircraft stripper? What grit do I prep the parts with for primer?

The parts left to prep and put in primer are the urethane bumpers, urethane 3 piece rear spoiler, urethane chin spoiler, plastic grill, fiberglass hatch, and plastic stock hood scoop.

Thanks,
Kevin
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