How Can Old, Yellowed Plastic Trim be restored?

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.

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

Third vote for Fusion paint.

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".

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!

Yup, this is the correct answer.

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.

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!

You could try a couple of quick swipes with acetone on a clean white cloth in an out of the way spot to see how it works. Other wise wash, dry and paint with one of the spray bombs made for plastic.

Clubmakers use acetone to polish plastic ferrules on golf clubs once they sand them to size.

replace or repaint.