Dwight,
First you must determine if this is a paint or polymer.
Methyl Ketone will destroy most paints by removing all oils. (Available at most Hardware Stores)
Place the grips in a ziplock bag along with a half cup of Methyl Ketone Move all to one corner of the bag.
Fold and wrap the bag with string or bands,
Tape works too, to keep the grips submerged.
Place in a metal coffee can, glass, polyethylene, or similar container, to catch leaks (just in case)
Keep sumerged and soak for a day or two.
If it has not softened to a point where you can brush the goo out with an old tooth brush, it must be a polymer, and may have to be removed by Hugh or discarded. <img border="0" alt="[crying]" title="" src="graemlins/crying.gif" />
This will remove all oils and appear to bleach the grips, have no fear the oils may be replaced by rubbing or brushing with an old tooth brush applying "boiled linseed oil".
I know of no solvents for polymers, Epoxys and such that are set with catalytic agents.
Best Luck.
ViggoG <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />