How Can Old, Yellowed Plastic Trim be restored?

[bluebarry1964b]

I think I'll soak the smaller pieces of trim such as A/C ceiling vents in a tub of 50/50 bleach & water. But what about the larger pieces such as the door piece? Any ideas on how to get them white again, or is repainting the best option?

[bob213]

Thanks C-Leigh Racing. That's a great price. Unfortunately it doesn't appear there are any Rose's on the west coast. Next time I drag the trailer to Kansas to see my brother I'll have to remember that. I use Awesome for quite a few clean up jobs, paint prep and window washing.

[C-Leigh_Racing]

bob213 wrote:
If L.A.'s Totally Awesome from the Dollar Store doesn't do it, I add my vote to the Krylon Fusion group.

Bob, Rose's Store has the 64 oz jug for $2.50, everywhere else has that same jug at $3.50.

Krylon is some good spray can paint. I've used it many times painting go karts, mini bikes, atvs & even an old Chevy trans van.
Put that ol camper in my shop, fired up the heat system to around 70* & that spray can paint flowed on just like an auto body shop job. No runs or fogged places & was shining like new. That was 12 years ago & last time I seen the ol camper, maybe 4 years, it was still shining.
Neil

[Big_Katuna]

Bleach won't take it out but Peroxide will. Computer restorers do it routinely.

[coolmom42]

ScottG wrote:
Repaint with Krylon Fusion. That stuff is amazing the way it looks and lasts. Clean first with lacquer thinner or alcohol.
I repainted the white plastic trim around some sky-lights and the trim around the outside of the windows in my 2 trailer doors about 5 years ago. They still look perfect!

This.

Bleach won't fix the problem, the yellowing is not a stain that will come out. It's from UV degradation of the plastic. Some plastics use additives to prevent this, but not all.

[imgoin4it]

Another vote for Krylon fusion. I used it to paint a replacement white acnd shroud. Picked out a color as close to the original as I could find. wiped it down with paint thinner and still looks as good as new after three years.

[fla-gypsy]

bob213 wrote:
If L.A.'s Totally Awesome from the Dollar Store doesn't do it, I add my vote to the Krylon Fusion group.

X2

[Sooner_Schooner]

Also check out Color Bond paint. I painted our trim on the 5th wheel with Krylon and it turned out great.

[rockhillmanor]

ScottG wrote:
Repaint with Krylon Fusionp. That stuff is amazing the way it looks and lasts. Clean first with lacquer thinner or alcohol.
I repainted the white plastic trim around some sky-lights and the trim around the outside of the windows in my 2 trailer doors about 5 years ago. They still look perfect!

X10

I did all the yellowed trim on the outside of a TT for a friend it looked brand new when I was done. That was 6 years ago and it is as white as the day I sprayed it on!

Krylon Fusion is the only way to go!!

[bluebarry1964b]

Wow!! So many votes for Krylon Fusion. I'll give it a try. Thanks so much to all!

[4aSong]

Another vote for Krylon Fusion. On our previous RV we used Krylon Fusion on the front awning cover, side vent covers and the entry door and it seemed to last forever.

[crasster]

Oasisbob wrote:
A second vote for Krylon Fusion. I believe they yellow due to UV rays and being inferior (cheap) compositiion to begin with. Often the high end RV has the same cheap plastic as the entry level units. Someone saves a little in the beginning at your expense. And whyy not? We keep buying this junk. Sorry, RV quality is a sore topic with me.

I agree. Saw a very high end RV the other day, 4 years old, super nice, but dingy YELLOWING plastic.

[bob213]

If L.A.'s Totally Awesome from the Dollar Store doesn't do it, I add my vote to the Krylon Fusion group.

[dbbls]

Third vote for Fusion paint.

[Big_Katuna]

Peroxide and UV light. Computer restorers do it. You can Google it.
You need pure Peroxide from a beauty supply and you can buy gel for big pieces.
I Googled "restore yellowing plastics".