I have some experience with this,. On a delicate surface it takes some patience. A) Use lots of a strong detergent (really alkeline stuff). B) make sure the affected surface is in the sunlight (or a strong UV source,like an old face bronzing thingy) C) rub of with your hand every time when dry D) wet again with the detergent solution E) keep repeating until all is gone All solvents that might remove it (some hydrocarbons) would be detremental to a delicate surface of a caravan Good luck Patrick John Walford wrote: >Some antisocial B*****D, sorry, deprived teenager,has sprayed the >back of my caravan with an aerosol foam filler. I removed most of it >when it hardened, but some is still left. Does anyone have ideas >about suitable solvents. > >- >- >John Walford > > > > > MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.