Featured Products

  • D/2 Bio Combo- 1 Gallon & 4 Quart (each 32 oz) Reusable Spray Bottles

    $94.00
  • D/2 Bio Combo – 1 Gallon & 2 Quart (each 32 oz) Reusable Spray Bottles

    $68.00
  • D/2 Bio Combo – 1 Gallon & 1 Quart (32 oz) Reusable Spray Bottle

    $55.00
  • 3/4″ Pail Pump – For Easy Pump Dispensing From a 5 Gallon Pail of D/2

    $15.00
  • 3/4″ Plastic Pail Faucet – For Easy Dispensing from a Five Gallon Size of D/2

    $7.00
  • D/2 Biological Solution – Two Pack, each 1 Gallon Size for a total of 2 Gallons

    $80.00
  • D/2 Biological Solution – 4 Gallon Case (Includes 4 one gallon size containers)

    $155.00
  • D/2 Biological Solution – 55 Gallon Drum [Note: Call for delivery options.]

    $1,760.00

How to Use D/2 Biological Solution to Clean a Gravestone

This video shows step-by-step how to use D/2 Biological Solution to clean a historic gravestone or monument.  Sometimes lichen & algae on a historic monument can be aesthetically pleasing, so the first question is why even clean the monument?   The simple answer is that the mold, mildew, algae, & lichens are feeding on the stone and thus, actually destroying the monument.  The next question to ask is whether the monument is in stable enough condition to clean.  As you will learn in this video, the first rule of cemetery conservation and preservation is do no harm.

Enjoy!  And let us know if you any questions.

Click here to purchase D/2 Biological Solution or click here for more information on D/2 Biological Solution.

What is D/2 Biological Solution? 

It’s a non-hazardous and biodegradable cleaner designed to preserve historic structures and cemetery monuments used by the U.S. Department of Veteran Affairs for our national cemeteries and extensively studied by the National Center for Preservation Technology and Training.

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