D/2 Biological Solution

D/2 Biological Solution is a biodegradable, nontoxic liquid that removes stains from mold, algae, mildew, lichens and air pollutants. It is effective on marble, granite, limestone, brownstone, travertine, masonry, terra cotta, concrete, stucco, wood, and other architectural surfaces including monuments, sculpture and headstones.

Historic masonry cleaner, historic preservation, biological cleaner, biodegradable, no-toxic