Restoring Yellowed Rear Cases?

Hi guys, I remember coming across this topic long ago, but now I'm unable to find it. There was a certain mix of cleaners or chemicals that someone discovered that takes away the yellowing in the rear cases of these old boomboxes, does anyone remember this mix or have a link to that topic?... any info/guidance on restoring the grey to these cases (still new to restoration stuff) would be very appreciated, thank you in advance

I think that was called retro brite.

Yes it's been discussed here in fine details a few times before.

toshik said:

Yes it's been discussed here in fine details a few times before.

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As awesomely helpful as ever.

There is a product called retrobright you can buy but others had used hydrogen peroxide i beleive. Let me see if i can find the link.

https://boomboxery.com/forum/index.php/topic/8226-restoration-technique-retrobright/

https://boomboxery.com/forum/index.php/topic/25797-retr0bright-results-trc920/

https://boomboxery.com/forum/index.php/topic/21018-de-yellowing-plastics-with-retr0bright/

Here is one i did a few years back

Retr0bright is not a product, it' a method.
More infos here : http://www.amibay.com/content.php?118-retr0brite

Such great information. I have a Lasonic TRC-920, which has some modest yellowing on the back case, and always wondered if there were a fix. I should have looked sooner. I will try my hand at this. Thanks!

No!! So I need to take all the electronics out! I assumed I just could be very careful with the application. Obviously it would be tricky at the vent, but I would use a very small paint brush.

Yep definitely have to dismantle

Thanks. Will look into it.

I’ve done it a couple of times. Need to slather the stuff on. Then hose it down when done