Login / Register
NEWSLETTER SIGN-UP
CWTC_logo_enrichment
LimeWorks.us LimeWorks.us
215-536-6706
contact us
LimeWorks.us LimeWorks.us
0 items / $0.00
Menu
  • Products
  • Services

    Laboratory

    • Free Observation of your Sample

    A series of basic tests performed by laboratory staff to subjectively determine the type of mortar or plaster submitted.

    • Color Simulations

    Lime Mortar, Brick, Paint, and Stone Simulations developed by our Laboratory that simulates the color, texture, and/or inclusions of submitted samples.

    • Historic Mortar Analysis

    Designed to help ascertain details about composition of a mortar for the purpose of recreating a historic blend or as a prelude to further instrumental analysis.

    • Instrumental Analysis

    Designed to help ascertain details about the composition of a mortar for the purpose of recreating a historic blend or as a prelude to further instrumental analysis.

    Email Tech Support

    Education & Consulting

    • Product Overview Webinar

    Educational webinars on LimeWorks.us products, services, and hands-on workshops.

    • Craftwork Training Center

    Hands-on workshops on repointing, plastering, brick & stone repair, historic wood windows, hempcrete and more hosted by the Craftwork Training Center.

    • On-site Consulting, In-House Installation, Product Training Programs

    LimeWorks.us offers an all-inclusive product training seminar and/or workshop that can be brought to your location.

  • Resources

    Resources

    • Product Documents

    Specifications, Cut Sheets, Installation Guidelines, Recipes, and Research Articles

    • Material Calculator

    Estimate material for repointing, laying, or plastering

    • Color Samples

    Digital color samples for lime mortars, plasters, brick and stone repair, and mineral paints

    • Hard Samples/ Stock Material Kits

    Samples and kits are designed to assist the contractor, architect, or conservator by giving them an on-site visual reference to evaluate

    • Blog

    Stay up to date on news, highlighted products & projects, and more

    • NHL Selection Tool

    A simple questionnaire to help you choose between NHL 2, 3.5, and 5 for your project

    • Recipes

    Lime Mortar, White Washing, and Log Chinking recipes

    • Videos

    Webinars, How-to guides, and Video Submissions

  • Installers
  • About

    About LimeWorks.us

    • Company
    • Global Impact
    • About Lime
    • Employment
    • Tell us Your Story

    LimeWorks.us Customers

    • Architects
    • Contractors
    • Homeowners
    • Retailers
    • Testimonials

0 items / $0.00
Send us a sample
RECIPES
Shop
D2 Biological Cleaner 1 Gallon
Click to enlarge
Home Masonry Cleaners D/2 Biological Solution
Ecologicâ„¢ Colorwash Stain Custom $42.00 – $560.00
Back to products
Ecologic Mortar Restoration Kit
Ecologicâ„¢ Mortar Kit $30.00
D/2 Biological Solutionâ„¢

D/2 Biological Solution

Rated 4.92 out of 5 based on 107 customer ratings
(107 customer reviews)

$18.95 – $2,070.00

Please call 215-536-6706 to order.

Clear
SKU: N/A Categories: All Products, Masonry Cleaners Tags: D-2, D2, Masonry Cleaner
MPN: N/A
Brand: D/2 Biological Solutionâ„¢
  • Description
  • Additional information
Description

Product Description

Description

D/2 Product Description:

D/2 Biological Solution is highly effective for removing stains caused by mold, mildew, algae, lichens, and air pollutants.

Tested and used by the Department of Veterans Affairs and the National Park Service, D/2 is a biodegradable cleaner that is pH neutral and contains no salts, bleach or acids.

D/2 is a safe, easy to use liquid that removes a broad spectrum of environmental soils and stains from structures and architectural features. It can be used on brick, stone, concrete, wood, vinyl & aluminum siding, fiberglass, metal, paint, and canvas with D/2 Biological Solution. Furthermore, it is effective on marble, granite, limestone, brownstone, travertine, masonry, terra cotta, concrete, stucco, wood, and other architectural surfaces including monuments, sculptures, 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 Application Procedures

Always do a spot test sample before proceeding with the project. This cleaning solution works best when air and surface temperatures are 45°F or above. Use D/2 undiluted for the best results. In the event of excessive plant exposure, rinse all plants and water in all planted ground areas.

For more technical data see the data sheets tab for downloadable PDFS.

Check out OneRestore Masonry Detergent for cleaning supplies for your project.

  • OneRestore
    Rated 4.89 out of 5
    $42.80 – $174.50

Benefits

Features and Benefits

  • Fast acting: 10 to 15 minutes contact time for
    great results.
  • Biodegradable
  • Contains no acids, salts, or chlorine
  • pH neutral
  • Will not etch metals or glass
  • Safer to use around plantings
  • Is not a hazardous material and requires no
    special handling or protection
  • Use full strength, no in-field mixing
    required
  • Shelf life of 5 years

Coverage

D/2 Biological Solution 1 Gallon Coverage

Coverage 250-350 sq. ft. per gallon

Submittal and Installation Data

SAFETY DATA SHEETS (SDS)

  • Safety Data Sheets (SDS) – pdf

Data Sheets

  • Datasheet-pdf
  • Technical Specifications-pdf

Videos

Gravestone Conservation and Preservation 

OneRestore Masonry Cleaner Overview Video

Workshops

ARTisAn Objective® Workshop MAS-03 – Grave Marker & Monument Cleaning & Repair Basics

Additional information
Weight N/A
Dimensions N/A
size

1 Quart, 1 Gallon (Call to Order), 5 Gallon, 55 Gallon

Brand

D/2 Biological Solutionâ„¢

107 reviews for D/2 Biological Solution

4.9
Based on 107 reviews
5 star
94
94%
4 star
3
3%
3 star
0
0%
2 star
0
0%
1 star
0%

Customer Images

Image #1 from Lorraine
Image #2 from Lorraine
Image #3 from Lorraine
Image #4 from Lorraine
Image #5 from Nancy J.
Image #1 from Lorraine
Rated 5 out of 5

Lorraine

November 1, 2021

This product does an amazing job on headstones. It’s easy to use and takes no time at all.

(6) (2)
Image #2 from Lorraine
Rated 5 out of 5

Lorraine

November 1, 2021

This product does an amazing job on headstones. It’s easy to use and takes no time at all.

(6) (2)
Image #3 from Lorraine
Rated 5 out of 5

Lorraine

November 1, 2021

This product does an amazing job on headstones. It’s easy to use and takes no time at all.

(6) (2)
Image #4 from Lorraine
Rated 5 out of 5

Lorraine

November 1, 2021

This product does an amazing job on headstones. It’s easy to use and takes no time at all.

(6) (2)
Image #5 from Nancy J.
Rated 5 out of 5

Nancy J.

September 22, 2021

I learned about D/2 from an article about a man who spends weekends cleaning old headstones, and that led me to LimeWorks. I ordered a quart to try it on our 1917 brick and stucco house and was immediately convinced that it is the answer to renewing any surfaces discolored by algae, moss, lichens, mold, mildew, etc. D/2 works like a charm! After my success, I ordered a quart for my brother-in-law in Illinois to clean family headstones, and I have now ordered a gallon to clean stucco in preparation for painting. I have used it so far on stucco, marble, ceramic tile, painted wood, concrete, and painted metal. My neighbor used some to see if it would work on mildewed asphalt shingles, and it did. I ordered an extendable 6'-24' soft car wash brush from Amazon for cleaning the stucco wall to avoid using a ladder. LimeWorks has absolutely excellent customer service; the gallon I ordered by phone yesterday will arrive today, and they have offered helpful advice and answered all my questions. (A local retailer sells D/2 but at double the price.) I've spread the word to our realtor, our handyman, a building inspector and a contractor. I could not be more impressed and satisfied!

(4) (0)
Image #6 from Nancy J.
Rated 5 out of 5

Nancy J.

September 22, 2021

I learned about D/2 from an article about a man who spends weekends cleaning old headstones, and that led me to LimeWorks. I ordered a quart to try it on our 1917 brick and stucco house and was immediately convinced that it is the answer to renewing any surfaces discolored by algae, moss, lichens, mold, mildew, etc. D/2 works like a charm! After my success, I ordered a quart for my brother-in-law in Illinois to clean family headstones, and I have now ordered a gallon to clean stucco in preparation for painting. I have used it so far on stucco, marble, ceramic tile, painted wood, concrete, and painted metal. My neighbor used some to see if it would work on mildewed asphalt shingles, and it did. I ordered an extendable 6'-24' soft car wash brush from Amazon for cleaning the stucco wall to avoid using a ladder. LimeWorks has absolutely excellent customer service; the gallon I ordered by phone yesterday will arrive today, and they have offered helpful advice and answered all my questions. (A local retailer sells D/2 but at double the price.) I've spread the word to our realtor, our handyman, a building inspector and a contractor. I could not be more impressed and satisfied!

(4) (0)
Image #7 from Laura Prosser
Rated 5 out of 5

Laura Prosser

April 29, 2021

D2 is a miracle. I clean abandoned veteran headstones, and this solution is a godsend. It safely and effectively cleans the stones and leaves them standing with dignity. And the time that it arrives at my home from the time I place the order is perfect, so much faster than I expected. I love D2, and I will only order from Limeworks when I need more! Thank you!!!!

(5) (2)
Image #8 from Laura Prosser
Rated 5 out of 5

Laura Prosser

April 29, 2021

D2 is a miracle. I clean abandoned veteran headstones, and this solution is a godsend. It safely and effectively cleans the stones and leaves them standing with dignity. And the time that it arrives at my home from the time I place the order is perfect, so much faster than I expected. I love D2, and I will only order from Limeworks when I need more! Thank you!!!!

(5) (2)
Image #9 from Laura Prosser
Rated 5 out of 5

Laura Prosser

April 29, 2021

D2 is a miracle. I clean abandoned veteran headstones, and this solution is a godsend. It safely and effectively cleans the stones and leaves them standing with dignity. And the time that it arrives at my home from the time I place the order is perfect, so much faster than I expected. I love D2, and I will only order from Limeworks when I need more! Thank you!!!!

(5) (2)
Image #10 from Laura Prosser
Rated 5 out of 5

Laura Prosser

April 29, 2021

D2 is a miracle. I clean abandoned veteran headstones, and this solution is a godsend. It safely and effectively cleans the stones and leaves them standing with dignity. And the time that it arrives at my home from the time I place the order is perfect, so much faster than I expected. I love D2, and I will only order from Limeworks when I need more! Thank you!!!!

(5) (2)
Image #11 from David H.
Rated 5 out of 5

David H.

April 19, 2021

Before and after on a 100 year old headstone

(3) (0)
Image #12 from David H.
Rated 5 out of 5

David H.

April 19, 2021

Before and after on a 100 year old headstone

(3) (0)
Image #13 from Kathy S.
Rated 5 out of 5

Kathy S.

March 31, 2021

Love your D/2 product; works great with little work involved. Your web site is easy to order and delivery is extremely fast! Before and after pics from a previous year.

(3) (0)
Image #14 from Kathy S.
Rated 5 out of 5

Kathy S.

March 31, 2021

Love your D/2 product; works great with little work involved. Your web site is easy to order and delivery is extremely fast! Before and after pics from a previous year.

(3) (0)
Image #15 from Kathy S.
Rated 5 out of 5

Kathy S.

March 31, 2021

Love your D/2 product; works great with little work involved. Your web site is easy to order and delivery is extremely fast! Before and after pics from a previous year.

(3) (0)
Image #16 from Judy
Rated 5 out of 5

Judy

November 4, 2022

Courteous and efficient service and the product that I ordered was AMAZING! Look at the before and after photos of the product’s effectiveness!

(0) (0)
Image #17 from Judy
Rated 5 out of 5

Judy

November 4, 2022

Courteous and efficient service and the product that I ordered was AMAZING! Look at the before and after photos of the product’s effectiveness!

(0) (0)
Image #18 from Judy
Rated 5 out of 5

Judy

November 4, 2022

Courteous and efficient service and the product that I ordered was AMAZING! Look at the before and after photos of the product’s effectiveness!

(0) (0)
Image #19 from DOROTHY D.
Rated 5 out of 5

DOROTHY D.

July 4, 2022

D2 product is remarkable. Working on multiple stones

(0) (0)
Image #20 from DOROTHY D.
Rated 5 out of 5

DOROTHY D.

July 4, 2022

D2 product is remarkable. Working on multiple stones

(0) (0)
Image #1 from Lorraine
Image #2 from Lorraine
Image #3 from Lorraine
Image #4 from Lorraine
Image #5 from Nancy J.
Image #6 from Nancy J.
Image #7 from Laura Prosser
Image #8 from Laura Prosser
Image #9 from Laura Prosser
Image #10 from Laura Prosser
Image #11 from David H.
Image #12 from David H.
Image #13 from Kathy S.
Image #14 from Kathy S.
Image #15 from Kathy S.
Image #16 from Judy
Image #17 from Judy
Image #18 from Judy
Image #19 from DOROTHY D.
Image #20 from DOROTHY D.
  1. Lorraine
    Verified Customer
    November 1, 2021
    Rated 5 out of 5

    This product does an amazing job on headstones. It’s easy to use and takes no time at all.

    Image #1 from Lorraine
    Image #2 from Lorraine
    Image #3 from Lorraine
    Image #4 from Lorraine
    Video #1 from Lorraine
    (6) (2)
  2. Nancy J.
    Verified Customer
    September 22, 2021
    Rated 5 out of 5

    I learned about D/2 from an article about a man who spends weekends cleaning old headstones, and that led me to LimeWorks. I ordered a quart to try it on our 1917 brick and stucco house and was immediately convinced that it is the answer to renewing any surfaces discolored by algae, moss, lichens, mold, mildew, etc. D/2 works like a charm! After my success, I ordered a quart for my brother-in-law in Illinois to clean family headstones, and I have now ordered a gallon to clean stucco in preparation for painting. I have used it so far on stucco, marble, ceramic tile, painted wood, concrete, and painted metal. My neighbor used some to see if it would work on mildewed asphalt shingles, and it did. I ordered an extendable 6′-24′ soft car wash brush from Amazon for cleaning the stucco wall to avoid using a ladder. LimeWorks has absolutely excellent customer service; the gallon I ordered by phone yesterday will arrive today, and they have offered helpful advice and answered all my questions. (A local retailer sells D/2 but at double the price.) I’ve spread the word to our realtor, our handyman, a building inspector and a contractor. I could not be more impressed and satisfied!

    Image #1 from Nancy J.
    Image #2 from Nancy J.
    (4) (0)
  3. Laura Prosser
    Verified Customer
    April 29, 2021
    Rated 5 out of 5

    D2 is a miracle. I clean abandoned veteran headstones, and this solution is a godsend. It safely and effectively cleans the stones and leaves them standing with dignity. And the time that it arrives at my home from the time I place the order is perfect, so much faster than I expected. I love D2, and I will only order from Limeworks when I need more! Thank you!!!!

    Image #1 from Laura Prosser
    Image #2 from Laura Prosser
    Image #3 from Laura Prosser
    Image #4 from Laura Prosser
    (5) (2)
  4. David H.
    Verified Customer
    April 19, 2021
    Rated 5 out of 5

    Before and after on a 100 year old headstone

    Image #1 from David H.
    Image #2 from David H.
    (3) (0)
  5. Kathy S.
    Verified Customer
    March 31, 2021
    Rated 5 out of 5

    Love your D/2 product; works great with little work involved. Your web site is easy to order and delivery is extremely fast! Before and after pics from a previous year.

    Image #1 from Kathy S.
    Image #2 from Kathy S.
    Image #3 from Kathy S.
    (3) (0)

Sorry, no reviews match your current selections

Add a review Cancel reply

Your email address will not be published. Required fields are marked *

You have to be logged in to be able to add photos to your review.

Cancel

You may also like…

Sold out
Read more
Quick view

Chapin 2.0L Plastic Pump Sprayer

Rated 5.00 out of 5
$10.99
Sold out
Read more
Quick view

Husqvarna – 2 Gallon Plastic Tank Sprayer

$55.99
Add to cart
Quick view

Long Arm Acid Brush – Plastic Fibers

Rated 4.67 out of 5
$7.50
Plastic Acid Brush
Add to cart
Quick view

Plastic Acid Brush

Rated 4.67 out of 5
$4.99

LimeWorks.us Brands

Links To Other Conservation Organizations

Links To Other Conservation Organizations

National Park Service

National Trust for Historic Preservation

U.S. Green Building Council

PTN

APT International

AIC

Sealant, Waterproofing & Restoration Institute 

The Construction History Society

LimeWorks®.us Headquarters

LimeWorks.us Google Location

Find a Retailer Near You

retailermap

Business Hours and Address

  • Monday - Friday, 7AM - 5PM
  • 3145 State Road, Telford, PA 18969

Contact Us

  • 215-536-6706
  • (Fax) 215-453-1310
  • Email us

General Links

  • Home
  • Our Company
  • About Lime
  • Global Impact
  • Employment

Products

  • Lime Binders
  • Lime Mortars & Grouts
  • Brick and Stone Surface Repair Material
  • Lime Plaster & Stucco
  • Lime Concrete
  • Limewash Mineral Paints & Stains
  • Masonry Cleaners
  • Supplements
  • Restoration Kits
  • Workshops & Education
  • Tools
  • In Store Only

Services

  • Free Observation of your Sample
  • Ordering Mortar, Brick, Paint, and Stone Simulations
  • Historic Mortar Analysis
  • Instrumental Analysis
  • Product Overview Webinar
  • On-site Consulting and Product Training

Resources

  • Material Calculator
  • Product Documents
  • Color Samples
  • Videos
  • Blog
  • NHL Selection Tool
  • Find a Retailer Near You
  • Quality Assurance
  • Shipping, Refund, and Exchange Policy
  • Legal Notices

2023 LimeWorks.us - Materials fit for purpose.
  • Menu
  • Categories
  • Lime Binders
  • Lime Mortars & Grouts
  • Brick & Stone Surface Repair Material
  • Lime Plaster & Stucco
  • Limewash, Mineral Paints & Stains
  • Masonry Cleaners
  • Supplements
  • Tools
  • Restoration Kits
  • Workshops & Education
  • In Store Only
  • Product Overview Webinar
  • On-site Consulting, In-House Installation, Product Training Programs
  • Login / Register
Shopping cart
close

Sign in

close

Lost your password?

No account yet?

Create an Account
Sidebar