Solvent for orange headliner foam?

[E. Roy Wendell IV]

In the process of removing my sagging headliner I got orange foam  
bits everywhere. I vacuumed up what I can but some of the foam has  
returned to it's original state as some kind of hydrocarbon based  
polymer that can only be described as orange goo. Can anyone  
recommend an effective solvent for this stuff so that I can sit on  
the seats and not ruin clothing?

E. Roy Wendell IV
erwendell at mac.com
Too many type 44 tq
A pair of MR2s