So I tried the retrObright...

[stasz]

My bucket was a slightly different hue than my armor. I read about retrobright - it's an "open source" formula that folks use it to remove yellowing from old PC cases, video game consoles, vintage sneakers, etc. There's a recipe online. I posted about it a little further down in this forum.

 

Well, I got the ingredients, mixed it up, slathered it on my bucket and I am thrilled with the result. I don't have a great before and after, but here are two pics, both taken in the same location with the same light source and camera. In the first, you can definitely see the shade difference between the lid and the armor.

 

This next one is after about 2 hours in the sun coated with the retrobright, same bucket and the forearm from that same armor set.

 

I did remove the faceplate/visor from the bucket and treated them simultaneously but separately.

 

 

I figured all I had to loose was a couple hours. Had a couple IPAs, turned the parts every 1/2 hour. It made a huge difference!

[Chex]

When I sold my old set, it needed that treatment as well. The trooper that bought it (WinterG) did that and it turned out great. Made it look brand new,

[stasz]

Yes, Winter's WIP!

 

I knew someone had posted about it not too long ago, I couldn't remember who for the life of me.

 

I also gooped up a couple of my old, super yellow Kenner Stormtrooper figures. They weren't brought back to pristine condition, but it made a huge difference.

[Nikko]

Wow. Good thing to keep in mind for the future! Thanks (to both stasz and WinterG) for sharing the experience.

[rebelscum87]

Thanks for posting your results! I'm getting ready to try this on my armor very soon, so it's resssuring to see others who have had success with it.