black adhesive behind "cultured marble" walls
hello. i recently pulled off a trim piece of some type of cultured marble looking material to reveal some lovely 4x4 ming green ceramic tiles. i would like to restore these tiles however when i pry the marble material away i can see a very thin layer of some type of black adhesive. not sure how to remove it safely. the bathroom has no exterior ventilation so i would appreciate any tips, advice or information on how to safely remove this glue from the green tiles.