cleaning paint etc off door moulds?

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Hi,

Got some red door and bumper moulds for the ss from the wreckers the other day due to mine looking like this from sun damage/cut and polish damage,

Now the ones i got have a few scrapes here and there which i can live with but they also have white paint, what im guessing is little bits of rubber etc on them which i want to remove.

Does anyone know of anything thing that will remove it without turning the moulds the same as the old ones?

i tried
:warm soapy water,
:1200grit sand paper on the back of one of them which dulled it,
:a caramel wheel which did the same plus put little marks in it

im a bit hesistant to use polishes/turps/metho etc. Any other ideas?

 

[rambunctious]

Try standard enamel thinners inside first where it can't be seen and if it removes the marks without damage then you can try it on the outside.

 

[xCalliba]

maybe try prepsol? ...unsure if it will dull the red though