"ESPECIALLY IF IT IS ON A POROUS SURFACE WHERE SOLVENTS MAKE GOO !"
Once you use a solvent and it is the wrong one you are screwed and goo`ed. Try either of those on gaffer tape or camera tape residues, then you have to use swarfega to remove the mush created.

The only safe ones to try are Meths, or isopropyl alcohol as if it doesn`t work it just evaporates leaving you back where you were. NOT leaving oily goo slime like the two suggested by the sublimely impractical above.

Have you ever had to remove that stuff off a £15K camera lens after experts like you?
I have.
Begone homunculi!
(tootired Is searching for a funny sig, nothing good so far, Sat 6 Jun 2009, 19:16, Reply)