removing paint from plastic, bad prep work peeling

[bmxpegan411]

HI Guys,

I'm painting some fender flares for a friend which looked like a cut and dry job, scuff and shoot...but when I hit them with compressed air I'm literally blowing the paint off. I'm assuming no adhesion promoter was used or just lack of a good scuffing prior. I blew maybe 60 percent of the paint off of one, and am removing the rest of the paint with 180 on a DA to get every stitch of the paint off. My question is, is this how you guys would approach an issue like this? I figure 180 all the old paint off and get the plastic a good tooth, scuff stuff and scotch brite to clean, then adhesion promoter, 2 coats of epoxy, then take it from there.

as always, thanks for any suggestions!

 

[Chris_Hamilton]

Get a couple of cans of bumper cover paint stripper at your local jobber. I use SEM 39913. Will be a lot faster than sand stripping it. If you sand strip it it can get the little "fuzzies" which sometimes require additional primer to get out. I would strip it with BC paint remover, if it strips clean then lightly scuff it with a gray scotch brite with scuff stuff to give it a little tooth and to clean all the stripper residue off, then adhesion promoter and seal it. You're then ready for base and clear. No real need for primer unless there are repair areas on the bumper.

 

[crashtech]

Kinda depends on what those flares are made of, the stripper is not for ABS, amongst other things.

 

[camarosrus]

I see the above SEM 39913 for stripping urethane

What product # do I use to strip OEM 73 Camaro fiberglass rear spoiler pieces ????

and then protocol for new coatings ????