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Rear bumper clear coat repair (pics).

 
Old 05-12-2019, 08:19 PM
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BubbaKahuna
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Default Rear bumper clear coat repair (pics).

"Wax on, wax off".
In this case it wasn't wax but rubbing compound.
These pictures represent about 4 hours of hand rubbing with a foam pad, rubbing compound & several microfiber towels.
All that work & the top of the rear bumper is still only 1/2 done.

Pretty obvious where I stopped (for now anyway).
I'm going to drink a beer now.




Last edited by BubbaKahuna; 05-12-2019 at 08:19 PM.
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Bckmstr (05-12-2019)
Old 05-12-2019, 10:09 PM
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Looking good , I need to do that to mine as its all scratched from previous owner , whatever they Used left massive swirls all over it ...idiots lol...keep up the good work danileson...lol
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BubbaKahuna (05-14-2019)
Old 05-13-2019, 04:16 PM
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rblakeney
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So are you removing the clear coat and then polishing the color paint layer?

Mine is in the exact same condition.
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Old 05-13-2019, 06:26 PM
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Indeed good question. Can you tell if clear remains?
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BubbaKahuna (05-14-2019)
Old 05-13-2019, 09:39 PM
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stabac
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Originally Posted by rblakeney View Post
So are you removing the clear coat and then polishing the color paint layer?

Mine is in the exact same condition.
Whose isn't??
What would be your best guess, fading from the sun, oxidation????
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BubbaKahuna (05-14-2019)
Old 05-13-2019, 10:04 PM
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rblakeney
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Yep...it seems to be the only area on my 89 that is suffering from this clear coat failure and it's fairly common. I have read where guys have attempted to sand this area and spray fresh clear coat on it but it's hit or miss on quality. I got a quote for $500 to repaint the whole rear plastic piece but if Bubba's technique will work for awhile I'm giving it a shot.
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BubbaKahuna (05-14-2019)
Old 05-14-2019, 11:00 AM
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I'm far from a paint restoration expert but I believe I am removing the clear, at least the top layer where the majority of oxidation lives.
I honestly don't know if I'm leaving some of the clear & just removing the sun damaged portion of it, or just polishing the paint after eliminating clear coat.

I'm using a small soft foam pad (wet) with Turtle Wax Buffing/Cleaning compound.
There are probably more aggressive materials that would do the job quicker but I'd rather go slow & not cut right through the paint layer if possible.
Just the top of 1/2 the bumper took about 4 hours, my shoulders were burning by then so I quit.
I'll probably hit it again this weekend.

It does have kind of a mottled look, not sure if that's from polishing small areas & overlapping or if the splotchy clear coat allowed different areas of paint to discolor.
Once I'm done I may hit it again with rubbing compound but only go in straight lines to see if it will even it out a little.
This will never be a show car so I don't need perfection but just removing that cloudy layer will probably bump the resale value of the car by about $1000.
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Old 05-14-2019, 11:05 AM
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vette196
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Amazon Amazon

you might want to try this, my DD had HEAVY oxidation and this worked well. You can only do an 18" x 18" at a time or it cures fast (you just have to reapply if cures too soon)
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Old 05-14-2019, 11:15 AM
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I also thought about using my electric random orbital buffer but decided not to because the edge of the rear deck is slightly proud of the bumper cover.
The large body panels like the rear deck and bumpers aren't made of the same material.
The deck is fiberglass but I think the bumpers & fascia on these cars is urethane, which can shrink, so we end up with little lips & edges along body seams.

The possibility of burning through the paint along the edge of the deck using a power tool was not something I wanted to risk.
Nothing like turning a molehill project into a mountain of a job ...
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Old 05-14-2019, 03:16 PM
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drcook
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If you are getting color on the pads/rags then you have gone through the clear coat.
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Old 05-14-2019, 03:56 PM
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rblakeney
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Yep, I like your take on it. Now I'm motivated to give it a try.
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Old 05-15-2019, 12:17 AM
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BubbaKahuna
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Originally Posted by drcook View Post
If you are getting color on the pads/rags then you have gone through the clear coat.
Yup, right from the start so I probably have more leftover damaged clear than functional clear. At least on the bumper cover.
Thankfully, the rest of the car's clear is in very good condition except for a couple areas that look like someone wet sanded some touch up paint.

Last edited by BubbaKahuna; 05-15-2019 at 12:38 PM.
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Old 05-15-2019, 12:37 PM
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belairbrian
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Originally Posted by drcook View Post
If you are getting color on the pads/rags then you have gone through the clear coat.
I agree with an exception. If there was a budget paint job done you can get color right from the start. Some of the budget painters out there mix base and clear and shoot them together. In that case you will get color on the pads from the start.

When my son got his first car they used the mixed process at Maaco. He had peeling clear coat. Since I wasn't about to put much into paint on a used Accord I spent $400 and ended up with a decent job. Then I cut it and buffed it to a mirror shine. Still looks good after 5 years.

If you are down to base the shine will be limited as base coat just isn't designed to polish.

I hate the duplicolor clear never know what it's going to turn out like. I had to touch up the hood of my truck and it turned white base to gray. Now I use the stuff from automotivetouchup.com I had a 02 Camaro that I used their rattle can clear to redo the rear bumper when I was done it had the same shine as the rest of the car.
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BubbaKahuna (05-17-2019)
Old 05-17-2019, 02:56 PM
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BubbaKahuna
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I wouldn't be surprised if the bumper was repainted at some point or replaced since it's not exactly the same shade of Torch Red the rest of the car is and also not as shiny.
Not just on the top where the hazing is but everywhere, even on the underside where sun never shines on it to fade it. Who knows ...?
I'll just keep plugging away at it & see what I end up with after the whole thing has the hazing removed, then I'll have a big think & go from there.

I appreciate the input from everyone!
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Old 05-17-2019, 03:32 PM
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rblakeney
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Well, it looks much better in the picture...thanks for sharing. I'd like to see the final result if you can post it.
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BubbaKahuna (05-18-2019)
Old 05-18-2019, 11:36 AM
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I hope to get back on it tomorrow & I'll post pics of how it turns out - or ends up.
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