Uploaded April 2016 | Updated September 2026, 2 weeks ago
I am trying to remove the old black mastic on a basement floor. This solution made out of soybeans works quite well. This is how I did it, with a shampooer to remove the black disgusting liquid.
I am trying to remove the old black mastic on a basement floor. This solution made out of soybeans works quite well. This is how I did it, with a shampooer to remove the black disgusting liquid.
