i have a part of my fortress maximus that is a little yellowed and am wanting to try and fix this. anyone know of how to do it.hope this is the right place to post this

 

Diluted bleach? Like mix 3 parts water, one part bleach and take a cheap toothbrush and scrub the plastic.

This is just coming off the top of my head, though. People may have a better solution.

 

Dangit, double post.

 

white spray paint

 

Pretty much it, pretty sure yellowing on plastic is also what happens when it breaks down.

 

I've never been able to fix yellowing. I just do my best to keep figure with white on it far away from sunlight.

 

Photodegradation - Transformers Wiki

Sorry, looks you're screwed. Irreversible.  

 

Since it's Fortress Maximus and his parts are pretty large you maybe able to wet sand the yellow off with some 4000 grit sand paper or finer then buff it smooth. If you do go down the paint road I would still prep it buy wet sanding it with very fine sand paper, and use automotive spray paint like duplicolor. It sprays on nice and smooth and it's very hard to get it to run.

 

LOL - This has been a topic for as long as I've been active in the Fandom... Since about 1996 or so.

There is no way to "change" the plastic back to white. You can try to remove the top layer or paint over it, but that's about it.

 

there is a product called sea-glow.
you coat the yellow area,then place it in the sun.
it works on other rubber/plastic,it may be worth a try.
Island Girl Products - Sea Glow and Crystal Clear
SEA GLOW? ON NIKE WHITE RUBBER SOLES

 

Looks promising... I may order it. For about $20 you get the cleanser and the SEA GLOW.

Thanks for the heads-up.
Mark

 

Yup, generally irreversible.

 

i have seen it work on vintage air jordan sneakers.
it turned the yellowed sole back to a clear blue.

 

I've had very good results with sanding and buffing.

I would love to hear how well the SEA GLOW works, but something tells me it won't.

 

That article says sunlight and flourescent lights are the culprite. So what exactly is the best type of lighting for a TF display?

What light gives off the least or zero UV rays?

 

Technical information on UV lamps, UV curing equipment, industrial safety products, testing instruments, ink and coating storage and handling materials, maintenance and printing supplies.

There's these filters you place over your window or fluorescent lights that block out the UV. I plan on getting them soon.

 

Perhaps, but was that yellowing caused by UV damage? I have my doubts.

 

This comes up frequently. White and gray plastics in particular inevitably break down over time--even with UV protection in many cases--which is not surprising considering what plastic is comprised of. Even keeping white figures in a dark closet is not a deterrent: heat contributes to the plastic breaking down too! I posted an article explaining this several years ago that pops up every now and then but I don't have it now. It involved restoring old Nintendo video game systems which had yellowed over time.