A friend just bought a used Tornado mast for use on a project boat. Turns out a previous owner had filled the mast with expanding foam! Probably in an effort to make the mast waterproof the easy way instead of the proper way. Too bad he did not notice before he bought the stick.
Now we are looking for ways to remove the foam. It looks like regular construction grade foam, like you use when installing new windows e.g. at home. Suggestions on what chemicals might eat such foam. Acetone? Benzen? HCl?
