I have a spare bumper that I am about to prep to get painted. It is an original with oem paint still on. From what I have read, using a paint stripper such as SEM XXX or BULLDOG (2 cans of it) will break down the paint but will maybe still need sanding to get the rest off. My buddy said then to sand it over with 180, then 240 and then I should be good to rattle can primer on it, I'm guessing 2 coats or so should be good with a light sanding in between. Is this correct? Also, does DOT 3 Brake Fluid actually work as a decent stripper (just wondering)? Advice would be appreciated, thanks.
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Need Tips On Prepping Bumper
Started by slowvo, Dec 07 2011 10:47 AM
7 replies to this topic
#1
slowvo
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Posted 07 December 2011 - 10:47 AM
2002 C70 HPT - loud&low.
#2 Guest_luke_jones_*
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Posted 07 December 2011 - 06:58 PM
Unless the paint is flaking/chipping off, and you are concerned that it will continue to do so under the new paint then I can see taking it all off. However, cleaning it with a good degreaser like "Prepsol" and a good sanding/scuffing to the entire thing should be sufficient. It just depends on what shape the bumper is in.
#3
AdirondackVolvo
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Posted 07 December 2011 - 07:23 PM
Don't use Brake Fluid. It can soak into the material and make it so the material will NEVER HOLD PAINT AGAIN!!!!!!! (Seen it happen....)
Other than that, I don't see why you couldn't just sand it down to get a smooth surface and prep it for paint.
Not a body guy (Not patient enough) But My $0.02 Anyways
Other than that, I don't see why you couldn't just sand it down to get a smooth surface and prep it for paint.
Not a body guy (Not patient enough) But My $0.02 Anyways
ADIRONDACK VOLVO(For Life), 2000 V70XC FWD 250,000 on 4/29/12
Rocking the Tethy's now!
Rocking the Tethy's now!
#4
slowvo
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Posted 07 December 2011 - 10:31 PM
Thanks for the comments. You guys helped expedite the process which sounded like a pain in the ALL GLORY TO THE HYPNOTOAD, especially with the stripper. The bumper is in decent shape, structurally. There are some rashes towards the bottom so I know that will take some time with the sanding block.
2002 C70 HPT - loud&low.
#5 Guest_luke_jones_*
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Posted 07 December 2011 - 11:04 PM
Yeah if the paint on it is in decent shape aside from some curb rash, sanding is the way to go. If you lay down a heavy fill primer after the initial scuffing/sanding, it will take care of many imperfections as well.
#6
T-5Bandit
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Posted 08 December 2011 - 04:00 PM
Make sure whatever primer and paint you use has a urethane flex agent in it. Otherwise it won't matter how well you prepped it, it will spider crack or flake with any minor impact.
John
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1998 V70 T5
Chrome 19" Niche Rhine Wheels
#7
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Posted 08 December 2011 - 04:37 PM
Do not just sand out the rash. Apply glazing puddy and sand on that. It will take a few light layers, but sanding on plastic will not give you good results.
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#8
slowvo
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Posted 08 December 2011 - 11:15 PM
Ok sounds good. I'm not painting it myself. My buddy owns a shop so he will do the painting/ clear coat for free and I figured prepping would be a good diy project while I'm not in school. I will probably primer it though, I'll make sure of the flex additive in it.
2002 C70 HPT - loud&low.
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