D/2 Biological Solution

A biodegradable, easy to use liquid cleaner 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, some just call it D2, is also 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. ORDER YOUR D/2 SAMPLE BY FILLING OUT THE FORM*.
 
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D/2 Biological Solution is available in 1 & 5 gallon containers as well as 55 gallon drums. A.H. Harris is an exclusive distributor of D/2 in the New York region & throughout New England, but any Harris location can get the product for you. From the White House in D.C. to cemeteries nationwide  – D/2 helps buildings, monuments, tombstones, facades look fresh and clean without aggressive chemistry. The cleaning solution contains no acids, salts or chlorine, is pH neutral, biodegradable and requires no special handling or protection.
 

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Immediate Result Method
  1. Always do a spot test sample before proceeding with project. D/2 works best when air and surface temperatures are 45°F or above. Use D/2 undiluted for best results. In the event of excessive plant exposure, rinse all plants and water in all planted ground areas.
  2. Apply D/2 Biological Solution with a brush, roller, hand pump sprayer (garden style pump sprayer) or low pressure power sprayer.
  3. Allow undiluted D/2 to remain on the surface 10-15 minutes.
  4. Apply additional D/2 as necessary to maintain a wet surface.
  5. Scrub with soft nylon or natural bristle brush (no metal brush!).
  6. Lightly mist with water and continue scrubbing.
  7. Rinse thoroughly with clean, potable water.
  8. Reapply if rain occurs within 12 hours of application.

No Scrub – No Rinse Method

  1. Always do a spot test sample before proceeding with project. D/2 works best when air and surface temperatures are 45°F or above. Use D/2 undiluted for best results. In the event of excessive plant exposure, rinse all plants and water in all planted ground areas.
  2. Using a sprayer (pump-up, low pressure, or other,) wet the entire surface with D/2.
  3. Allow to air dry.
  4. Visible results occur within one week to one month, depending on severity of soil.
  5. Reapply if rain occurs within 12 hours of application.
Treatment & Maintenance Program
 
Add years to the life of your property. After initial treatment of substrate, a once-a-year light spraying will help maintain a clean, stain-free surface. NOTE: Heavy biological deposits can be loosened using a low pressure washer (600 psi), and may require repeat applications of D/2 to achieve complete cleaning after detachment. Alternatively, heavy growth can be detached by manual scraping using wooden or plastic tools immediately after application. In the event of excessive plant exposure, rinse all plants and water-in all planted ground areas contacted by D/2.
 
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D/2 has become a customer favorite cleaning solution, give it a try and request your sample! For a comprehensive list of projects and D/2 users, visit d2bio.com. Download D/2’s Product Data Sheet, Safety Data Sheet or Application Guide. Contact your local Harris or request a quote today. See also our short video clip about the two application methods mentioned above.
 
* may not be available worldwide, we apologize for the inconvenience