D/2 Biological Solution - 2 Quarts Spray Bottles.
D/2 Biological Solution

D/2 Biological Solution - 2 Quarts Spray Bottles.

4.8 stars out of 29 reviews
(4.8)|
29 ratings

Key item features

  • Versatile Application: Suitable for use on concrete, stucco, wood, canvas, and vinyl & aluminum siding.
  • Effective Coverage: Provides coverage of 250-350 square feet per gallon.
  • Biodegradable Formula: D/2 Biological Solution is biodegradable and easy to use.
  • Stain Removal: Removes stains from mold, algae, mildew, lichens, and air pollutants.
  • Wide Surface Compatibility: Effective on marble, granite, limestone, brownstone, travertine, masonry, terra cotta, and other architectural surfaces.
  • Quick Action: Requires only 10 to 15 minutes of contact time followed by scrubbing with a soft nylon or natural bristle brush.
  • Specialized Use: Ideal for cleaning monuments, sculptures, and headstones.
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Current price is $53.95
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Columbus, 43215
Arrives by Wed, Feb 25
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Sold and shipped by Historic Building Products LLCPro Seller
4.8515625 stars out of 5, based on 128 seller reviews(4.9)
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4.8 out of 5 stars
stars29 ratings15 reviews
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  1. 5 stars93% (27)
  2. 4 stars0% (0)
  3. 3 stars0% (0)
  4. 2 stars3% (1)
  5. 1 star3% (1)

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Showing 1-3 of 15 reviews

Oct 17, 2025
Gordo
Sold and shipped byHistoric Building Products LLC
5 out of 5 stars review

Verified Purchase

Using D2 on Cemetery Headstones

Product works great especially on Cemetery Headstones. Spray on a dry headstone and let mother natural rain clean your headstone. You might have to reapply it 2 or 3 times in a matter of a couple of months if there is moss or likens growing on it , but it does work well.

Helpful?1JKIB6PD5DVV14942274881
Jul 17, 2025
anonymous
Sold and shipped byHistoric Building Products LLC
5 out of 5 stars review

Verified Purchase

So glad to discover D/2

For a few years, I've tried different ways to clean my family's and others' gravestones in our little cemetery. A friend of mine on the cemetery board saw information about D/2 and ordered a bottle, since we were getting the cemetery ready for a tour sponsored by the county historical society. We were amazed at how well D/2 works, how simple it is to use, and how safe. We wound up ordering more for the cemetery tour, and I ordered some for gravestones for my family and friends. It might sound crazy, but I was excited to try D/2 on an old obelisk monument that was encrusted with lichens. It did an amazing job, revealing script in German on one side. It didn't provide a translation, but it did everything else we hoped for!

Helpful?1JKIB6PD5DVV14942274881
Jul 14, 2025
Mary
Sold and shipped byHistoric Building Products LLC
5 out of 5 stars review

Verified Purchase

D/2 Biological Solution is the best!!

I bought this to clean my grandparents headstone and I was amazed with the results! It cleaned just like it said it would! I was very pleased with the results and would recommend it to everyone that has family headstones that need cleaned. It works quickly and continues to work afterwards too. Great stuff!!

Helpful?1JKIB6PD5DVV14942274881