How to remove a polyurethane resin from a metal disc?

[opticsman]

Hi All . I am trying to produce a polyurethane resin casting of a bronze disc . The disc has grooves in it and after curing, the resin has got stuck in the grooves and elsewhere. I used a release agent but maybe didnt apply enough. I have tried heat cycling which worked to some extent but there are still spots of resin left in a number of areas. Can anyone suggest how to remove it without damaging the disc. a solvent perhaps?Many thanks in advance,Opticsman

 

[Compositepro]

Soaking in acetone or paint stripper will probably allow you to brush it off.

 

[ScottyUK]

Dichloromethane is pretty good at removing most organic coatings. Nasty stuff to work with though. Methanol is powerful too. Both should have no noticeable short-term effect on metal.


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Sometimes I only open my mouth to swap feet...

 

[unclesyd]

I would give this company a call concerning your problem. I saw these folks products at a local paint and powder coating facility.
There are also some pretty effective urethane paints removers available from the paint stores.

http://www.miller-stephenson.com/