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D/2 Biological Solution - 1 Quart (Spray Bottle)


Size: 1 Quart

D/2 Biological Solution is a biodegradable, easy to use 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. A contact time of only 10 to 15 minutes followed by scrubbing with a soft nylon or natural bristle brush will loosen most biological and air pollutant staining.

D/2 Biological Solution is effective for removing harmful biological and air pollutant staining from many building materials including masonry, marble, granite, limestone, brownstone, travertine, terra cotta, concrete, stucco, wood, canvas and vinyl & aluminum siding.

Check out all the of the users of D/2!: Including The White House, The Veterans Administration, and the Congressional Cemetery. 

Safety Data Sheet     SPECS


Ask a Question
  • How many sq inches will a quart bottle clean?

    The D/2 Biological Solution website says "Typical coverage to remove medium deposits will vary from 250 to 350 square feet per gallon."
    This means a quart will cover 62.5 to 87.5 square feet. There is a range because it depends on the porosity of the stone.