There have been several methods of removing the black tar like patches used to stabilize the fiberglass batt insulation between the outer and inner skin of a skoolie. I've read everything from solvent wash to wire brush on a angle grinder. Today I discovered, probably the easiest way to remove it I can think of. I was washing the floors out after removing plywood and screws with my pressure washer. I decided to try stripping off the patches on the side walls. WHOA!! it took it off very nicely and quick!!
Thought I'd pass along the info to help save some time for others. When I remove the metal headliner and insulation, I'll break out the power washer again!!
I am an sojourner in the earth; hide not Your Commandments from me. Psalm 119:19
Here is the patience of the saints; here are the ones keeping the commandments of YAHWEH, and the faith of Yahshua. Rev. 14:12