Removing Mastic?
Steel wool? Doesn't seem like adhesive remover works well.
Put on a latex or vinyl glove and grab a glob of the stuff. Then dab that glob on other spots of the adhesive. As you do this, the glob will get bigger and bigger - and the adhesive will come off clean. (BTW - The same method works with chewing gum.) It takes me around 20-30 minutes a door to get it all off.
If you have any stubborn spots, Acetone will dissolve the adhesive, but it also dissolves the composite door! So, if you need to use the chemical, do it very very very sparingly and only in the small spot you need it.
THANKS!



