Cleaning yellowing plastic

gemmaj

I've used whitening toothpaste on plastic before with some success. A mixture of the whitening powers and scouring effect (its mildly abrasive). Never tried on a pc before tho!

germish

Hydrogen Peroxide is the answer.
Google for more details on how. Vintage computer cleaning yellowing Bromide (that's what makes the plastic go yellow and later even brown). But you need to get the peroxide to be more like a paste to apply it better. So you need to find out what recipe to follow or which product has peroxide already in a paste like consistence. Some of the recommendations are US products not available here. So add UK to your google search too.

Slinky

This thread was last live in 2011!

germish

It still comes up as a resource in Google for info on the subject.
So why not update it, never mind how old.