Lollyloopp
Member
Found a black foam substance glued to concrete after removing carpet. Pulls up easily where it is the thickest.
In researching I found black mastic cut back adhesive that might have asbestos and left over backing from rubber backed carpet. How can I definitely tell the difference?
What I have is soft foamy material that is flexible, not hard or rigid. It does crumble out tear apart easily.
Also, best way to remove this stuff, especially where it seems really stuck to the concrete?
I already laid a vinyl plank floating floor over it with an underlayment. The floor came apart after a few months. The click lock just failed miserably, I think because of the unevenness from this black stuff.
In researching I found black mastic cut back adhesive that might have asbestos and left over backing from rubber backed carpet. How can I definitely tell the difference?
What I have is soft foamy material that is flexible, not hard or rigid. It does crumble out tear apart easily.
Also, best way to remove this stuff, especially where it seems really stuck to the concrete?
I already laid a vinyl plank floating floor over it with an underlayment. The floor came apart after a few months. The click lock just failed miserably, I think because of the unevenness from this black stuff.