Used bumper repair

[nmcgrawj]

i found a bumper for cheap that i think im gonna go pick up. The yard says its scratched and the clear coat is pealing.

What sanding methods should i use to even out and take down the clear coat to prep it for primer/paint? Is there an indicator of a scratch being "too deep" into the urethane that would make it not worth buying?

If it matters, its a front mustang cover.

[controlled insanity]

in the same situation

subscribed

[kaspeed]

i found a bumper for cheap that i think im gonna go pick up. The yard says its scratched and the clear coat is pealing.

What sanding methods should i use to even out and take down the clear coat to prep it for primer/paint? Is there an indicator of a scratch being "too deep" into the urethane that would make it not worth buying?

If it matters, its a front mustang cover.

depends on how cheap... i have repaired covers that were torn in two before if i couldn't get a new one...

[nmcgrawj]

This is what Kevin/slideways told me. Sounds like a plan...


if the clear is peeling your going to want to make sure you sand it back untill you get to the areas where the clear is still well adheared (sp?) i would use 400-600 grit on a DA sander for this step. And assuming the scratches go into the plastic its nothing that a 2 part urethane bumper repair material couldnt fix rather easily.

[kaspeed]

320/400 would be fine...your gonna end up priming it anyway... sounds like your on the right road....

[aimmotorsports]

i would start with 150 or 220. prime then block with 320 and 600 depending on the color and type of paint...

[SVT32VDOHC]

Nate if the clear is peeling start with 220, or 320 and go from there. I usually finish sand covers with 320 on a DA, then use Scotch Brite pad by hand.

If it's a total repaint and the paint is actually flaking and chipping....strip it with a DA using 80 grit. I've taken down covers to the urethane to refinish. This is my 96 Cobra cover. 8 years and 20,000 miles of summer only conditions and it still did this.

Before...



Primer...Nason Urethane 2K


After...Nason Ful-Thane Urethane paint (single stage) I highly recommend it. It's harder than bc/cc and resists future rock chips.

[nmcgrawj]

Nate if the clear is peeling start with 220, or 320 and go from there. I usually finish sand covers with 320 on a DA, then use Scotch Brite pad by hand.

If it's a total repaint and the paint is actually flaking and chipping....strip it with a DA using 80 grit. I've taken down covers to the urethane to refinish. This is my 96 Cobra cover. 8 years and 20,000 miles of summer only conditions and it still did this.

Before...

Sweet man, thanks for the tips!

[SVT32VDOHC]

Sweet man, thanks for the tips!

No problem. I've used 150 on others, it depends how bad of one you start with.

[SVT32VDOHC]

Another for example...

Before, during, after. The white is not a primer, it's a 2K Urethane Sealer over the yellow Urethane 2K primer. I loved using the sealer.