Flooring Over Black Mastic

Possible signs of asbestos mastic include discoloration and an oily texture.

Flooring over black mastic.

Common in homes built in the 20th century black mastic was used as an adhesive for ceramic tile linoleum and other flooring materials. When you remove that floor covering to make way for new flooring you may encounter the mastic and wonder whether it is safe to remove the main concern surrounding this question is that black mastic often contains asbestos. I am left with the old black mastic on my cement floors and wood stairs leading down into basement. Can adhesives and moisture barriers be used over old black cutback asphalt based adhesive.

New flooring over old mastic. Will the mvp adhere to that. Armstrong vct adhesives may go directly over cutback adhesive. It was suggested by a flooring specialist that the tile may have been glued down with black mastic due to the age of our home 1965.

Asbestos mastic will also always be black in color. Hello i removed old vinyl tiles in my basement. The entire floor in completely covered. If your building was built before 1980 mastic mixed with asbestos may have been used to seal your tiles to the floor.

However the substance isn t sticky like other posters are. Mastic is a type of glue used to adhere tiles and vinyl flooring to the subfloor. I am tiling mosaic and small pieces over what once was a concrete basement floor which on occasion in my city with all the rain can get flooded what was there when i bought the house 2 years ago was an asbestos linoleum 1 square very thin tile over a thin black mastic. There is no concrete exposed.

Asphalt based cutback adhesive remaining on a concrete floor after removing old vinyl tile and other flooring represents one of the most difficult and risky subfloors for the installation of new flooring. If the existing floor covering in a bad shape it must be removed before installing new flooring. Below are some recommendations for installing different categories of flooring over cutback adhesive. Existing adhesives must be left so that no ridges or puddles are evident and what remains is a thin smooth film.

I have received estimates for the mastic removal of 1000 to 2500.