Retrobright old computers (UV pen issue)

forgotmyname

Bit of a long shot...

Came across a few videos on youtube about Commodore Amiga computers and how people are still making and designing stuff for them.

Decided to dust mine off after being stored away for almost 20 years. They had suffered the yellowing/browning issue that some 90's plastics used to suffer from.

Bromine used in the plastics to make them less combustible, but over time an more so in sunlight the chemical turns the surface of the plastic a yellow/brown colour.

Found out you can bring them back close to their original colour by using cream peroxide and some UV light.

Slight issue though, back in the 90's they seemed to be handing out those UV marker pens to write your postcode on everything which i must have used on the computers, this is visible and actually blocked the suns rays from yellowing the area with the address.

Any idea howto fix that?

Thanks

Neil_Jones

UV pens are designed to be permanent so short of replacing the plastics where you've marked them no solution will be pretty, in fact anything abrasive will make it worse and you may cause more cosmetic damage than you fix.

You may be able to use a dry-erase marker (ie not a permanent market), copying it over and then rubbing that away which may, in theory, remove the bulk of the UV marker.

Mista_C

Have you considered trying to restore the colour first? It's possible the UV "ink" may be less noticeable after. I'd like to think the restoration would do away with the UV markings while it does its thing but I imagine that's not going to happen.

forgotmyname

I think its going to be a case of trying to get the plastic as white as possible to hide the text.

Should have gone over the whole case with the UV pen, the yellowing would have just washed off

Thanks.