Cleaning up old plastics - question

[Ashbo]

Hiya

I've been cleaning up some old plastics and now I'm left with a faint nicotine orange colour throughout.

Do I keep cleaning or is that as good as I can expect???

Many thanks.

Ash

 

[M4carp]

I had a yellowed plastic that I turned into a clear one the other day, I put it into a clear bag of 17.5% hydrogen peroxide and left it on the patio table for a couple of days in the sun, I tried this last winter and it took over 2 weeks to do the same thing. Not tried it with artwork on plastics though.
Think you can only get 10% ish strength hydrogen peroxide now but should still work.

 

[Ashbo]

I had a yellowed plastic that I turned into a clear one the other day, I put it into a clear bag of 17.5% hydrogen peroxide and left it on the patio table for a couple of days in the sun, I tried this last winter and it took over 2 weeks to do the same thing. Not tried it with artwork on plastics though.
Think you can only get 10% ish strength hydrogen peroxide now but should still work.

AHH crafty, I like your style! Me thinks I'll try this over the weekend. Greenhouse I think!!

Many thanks sir!