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Unread 12-29-2007, 06:43 PM   #1
jnnym21
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Plastic Oxidation....Any solutions?

I have the 98 Grand Cherokee Laredo and it has the plastic on the doors and the rear and bumper. Problem is, it's extremely oxidized and looks bad. Yes armor all works but it washes off with the rain. Anyone have any thing that they found works better ?

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Unread 12-29-2007, 07:14 PM   #2
EisBlade
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Yeah, I know what you mean. That bumper renew paint doesn't last either, I tried it. I opted to coat mine with that spray-on truckbed liner. I pulled everything off, sanded down ever inch of each panel good, sprayed on adhesive promoter, then followed up with several coats of that liner spray found in Autozone. I did the front bumper about a year ago and liked how it held up (no chipping dings, or anything) so decided to do the rest. I pulled off and finished the rear bumper 3 months ago, and am finishing up the side panels sometime tomorrow or Monday. That's keeping it on the cheap side.

An alternative would be to find a RhinoLiner or similar shop and have them coat them. Talk about durable. It also helps reduce wind noise from the wind hitting the bumpers.
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Unread 12-29-2007, 10:40 PM   #3
greasefingers
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The sun evidentially destroys all man made items especially plastic (including the plastic head light lens)
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Unread 12-29-2007, 10:45 PM   #4
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just do what everyone else on here believes....mud...keep it covered in mud.
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Unread 12-30-2007, 04:31 PM   #5
jnnym21
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haha yeahh I think that would look best.
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Unread 12-30-2007, 05:14 PM   #6
DTrem08
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Linseed oil and paint thinner, which I found when I searched!

Worked for me, but if you get it on your paint and get it dusty/dirty, have fun getting the crap off there...gotta scrub real hard. I think I'm going to try mine again in the spring (did it last spring as well) but wash it, apply it, wash it, then get it dirty!
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Unread 01-06-2008, 06:57 PM   #7
jnnym21
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50/50 Boiled Linseed oil and Paint thinner did it, that has to be the best solution ever for it. Did mine yesterday and wow looks brand new....pics will come.
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Unread 01-06-2008, 11:10 PM   #8
colinzj
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I've had good luck with Meguiar's All Season Dressing. It's not a permanent fix, but it's worked far better for me than Back to Back or any of that other crap, and lasts for months at a time.

Haven't tried the linseed oil. I have visions of my cladding spontaneously combusting.
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Unread 01-07-2008, 09:15 AM   #9
EisBlade
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Check out the two pics on my Gallery. Saturday I finished my project of painting the gray bumpers and lower panels with black spray-on truck bed liner. I'm pleased with how these turned out. Being the best test case, I did the front bumper first about 1 year ago. There are no chips or flaking and the color has held up very well.
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Unread 01-07-2008, 10:24 AM   #10
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that spray-on truck bed liner looks nice. does it yield a smooth finish?
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Unread 01-07-2008, 11:25 AM   #11
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I'd give wet sanding a try.
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Unread 01-07-2008, 11:19 PM   #12
MAO
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Quote:
Originally Posted by jnnym21
50/50 Boiled Linseed oil and Paint thinner did it, that has to be the best solution ever for it. Did mine yesterday and wow looks brand new....pics will come.
I have seen this several times on the forum, but there is never any long term results listed. Most everything looks nice as you apply it. Has everyone that tried this spontaneously combusted?

People have suggested Back to Black. Don't waste your time, it washes off after 3 rains, instead of 1(ArmorAll).

I have tried using a hair dryer. Not much luck. Maybe you have to do it in the summer in order for the plastic to get hot enough.

I am trying 303 Aerospace Protectant. Best results so far, but still looks like it is going to wash off. It has survived 3 rains/snows, but I do see a little fading.
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Unread 01-08-2008, 02:27 AM   #13
EisBlade
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Quote:
Originally Posted by K-Pax
that spray-on truck bed liner looks nice. does it yield a smooth finish?
Most fluids won't last long. They only cover short term.

It's not smooth like enamel or brake/engine paint, this stuff is textured already; it comes out of the can that way. Think of the texture of the paint on the inside of a car trunk.
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Unread 01-08-2008, 08:24 AM   #14
x saturn x3
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do you mean the black plastic bumpers? Without paint? If so, peanut butter! The oils in the peanut butter removes waxes, and it "treats" the plastic. Wash the parts off with soap and water afterwards and it'll look good as new.

Or try Forever Black dye. Or Back to Black by mother's.
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Unread 01-08-2008, 09:12 AM   #15
greasefingers
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Quote:
Originally Posted by x saturn x3
do you mean the black plastic bumpers? Without paint? If so, peanut butter! The oils in the peanut butter removes waxes, and it "treats" the plastic. Wash the parts off with soap and water afterwards and it'll look good as new.

Or try Forever Black dye. Or Back to Black by mother's.
Yes the none painted bumpers and side clading.

None of these work! It actuaslly works but only for a couple of days. By the following weekend you are back to square one. Using old used motor oil is just as good as any product sold!!!

The products out there make new plastic shine, but this thread is talking about sun damaged plastic. This is completely different. Once the color fades it is faded forever.
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