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D2 Biological Cleaning

D/2 Biological Solution


Quick Overview

D/2 Biological Solution has been successfully used to clean millions of buildings and monuments. From the White House to Arlington Cemetery, D/2 is trusted to work and keep on working when results matter.

D/2 Biological Solution is specially formulated to remove environmental pollution, dirt, and staining from biological soils such as mold, mildew, lichen, and algae from indoor and outdoor structures. 


D/2 is a Biodegradable cleaner that is PH neutral and contains no salts, bleach or acids. It is highly effective for removing stains caused by biological growth on surfaces including marble, granite, limestone, masonry, concrete, wood, canvas and vinyl & aluminum siding. It will not damage glass, metal or plants.

Tested in a 6 year study and now specified by the Department of Veteran Affairs National Cemetery Administration

click here to read more on the "Evaluation of Cleaners for Government Issued Headstones"


D/2 is the only product developed for conservators by conservators



adobe-small.jpgD2 Biological Solution Projects.pdf

  • masonry
  • stone
  • concrete
  • wood
  • asphalt shingles
  • vinyl & aluminum siding
  • fiberglass, metal, paint, canvas, etc.
  • Will not damage glass, metal or plants
  • PH neutral
  • Contains no salts, bleach or acids




Method For Use:   

  • Apply D/2 with a brush, roller or sprayer
  • Allow the undiluted D/2 to remain on the surface for 5 to 10 minutes
  • Apply additional D/2 to maintain a wet surface
  • Scrub the surface thoroughly with a non-metallic, short fibered scrub brush
  • Lightly mist with water and continue scrubbing
  • Rinse thoroughly with fresh water using a hose or sprayer

Treatment and Maintenance Program

After initial treatment of substrate, a once-a-year light spraying will help maintain a clean, stain-free surface.

NOTE: Heavy biological deposits may require repeat applications of D2 cleaner to achieve complete cleaning after detachment. Alternatively, heavy growth can be detached by manual scraping using wooden or plastic tools immediately after application.

Data Sheet


adobe-small.jpgSell Sheet

adobe-small.jpg Specs


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video.jpg How to Video

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