I wanna Dynamat inside my doors but I have rustproofing sprayed inside (fyshoil I guess).
Will this be much of a problem to clean up for a good sticking surface?

Get some wax & grease remover (prepsol).

Soak a rag with it, wipe down the surface you wish to apply the dynamat to and then use a clean rag to dry it off.

So it's that simple.

So it's that simple.


lol....no.........

clean the panels as suggested - that will be fine, but put in some elbow grease to ensure it is completly clean.......then you just have to put on the dynamat.......trust me, by the time you are done you will be completly sick of doing it......but the rewards are ohh so worth it!!!!

Yeah clean it up, Dynamat will stick to just about anything. Be careful of the edges when you are securing the ends. You will end up with 1000's of paper cut like cuts, wear gloves if you can. :D