I was wondering if anyone might be able to suggest a solvent to break down polyurethane prepolymers? To be specific, the components on the profile are the following:
Ethyl acetate (5-10%)
Polyurethane prepolymer (90-95%)
4,4 Diphenylmethane diisocynate (0.1-1%)
It seems like the polyurethane prepolymer was used to bind the ethyl acetate, a solvent, with the 4,4 diphenylmethane diisocynate as a catalyst, is this right? I only have the final product and the above list of materials that are supposed to comprise it. I need to find something that will break it down or, better, dissolve it. The only information that I have been able to find is the process of making polyurethane prepolymers, where to obtain more, and the uses of the material.
Acetic acid or acetone soften the material, but I was hoping to find something that might work better.