Lmshoemaker Posted July 31, 2014 Share Posted July 31, 2014 I need help removing a coating that was applied to a fossil. I got a lot of unprepped material from a friend to work on for him. A few pieces were done but had a coating put on which turned a greenish color over time. I don't know what it is but I need advice removing it. I tried nail polish remover to no effect. Link to comment Share on other sites More sharing options...
Harry Pristis Posted August 1, 2014 Share Posted August 1, 2014 Try solvents and paint-strippers until you find one that works. Be prepared to let the object soak in the solvent, then be willing to use scrapers and stiff brushes on the residue. If you're lucky, one of the brush on, wash off strippers will work. I think I'd try that one first. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
Opisthotriton Posted August 1, 2014 Share Posted August 1, 2014 Did they arrive green or did they change color over time? Spray accelerator for superglue will turn matrix green, but that's immediate, not delayed. Link to comment Share on other sites More sharing options...
crinus Posted August 1, 2014 Share Posted August 1, 2014 Have you tried just soaking it in water? It can be a water based coating. Is the rock stable enough for soaking in water? If that does not work or it can't be soaked and since acetone does not work, the only other solvent to try is THF (tetra hydra furan). If you have access to an analytical laboratory they will have it. It is the universal solvent used to dissolve everything and anything. I have used it when I need to remove superglue because it works better than acetone. If none of this is possible, air abrading it off can also work. crinus Link to comment Share on other sites More sharing options...
Harry Pristis Posted August 1, 2014 Share Posted August 1, 2014 In fact, water is called the "universal solvent" because it dissolves more substances than any other liquid. http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
crinus Posted August 1, 2014 Share Posted August 1, 2014 Had lunch with my source for THF. He says, if you can't get the pure stuff, look at paint strippers. Certain brands contain THF. Stay away from the ones containing methylene chloride. A bit on the toxic side. crinus 1 Link to comment Share on other sites More sharing options...
Lmshoemaker Posted August 3, 2014 Author Share Posted August 3, 2014 Thanks all, I think I will just lightly abrade it off, that seems easiest. Thanks for the recommendations. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now