Originally Posted by karrlot
I've pulled ceiling and wall panels out.
I've removed insulation.
I've scraped insulation.
Now I'm left with the black tar/glue stuff that I assume was used to hold insulation in place during construction.
It doesn't appear to promote rust. Do I need to get it off, paint over it, or forget about it?
Mine was trapping moisture and I got rid of it. Spent a LOT of time doing so!
Its all in my thread somewhere if you wanna take a look at how I got it off. Aircraft stripper, then lots of manual labor with a wire brush on a drill.
A GOOD fan will make things much more pleasant.
This stuff takes it off the best