D/2 Biological Solution

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Non-hazardous and biodegradable, D/2 Biological Solution is an easy to use cleaning solution for removing harmful and unsightly biological and air pollutant staining from building materials.

Price range: £14.58 through £172.23

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Used on buildings, monuments, sculptures and headstones, D/2 safely removes stains from mould, algae, including stubborn red algae, mildew, lichens and air pollutants.

Developed by conservators, D/2 has helped keep prestigious properties such as The White House and The Alamo pristine.

  • No harmful acids, salts or bleach
  • Will not etch metals or glass
  • Biodegradable and non-hazardous
  • Safer to use around plants
  • Requires no special handling or on-site mixing
  • Effective on stubborn red algae
  • Shelf life of five years

D/2 Biological Solution is effective and safe for a wide range of masonry and architectural surfaces, including render, coloured render, concrete, brick, cast stone, aluminium, vinyl sliding, canvas and wood.

D/2 is also safe to use on natural stone, including marble, granite, limestone, sandstone, slate, brownstone, travertine and terra cotta.

While D/2 is safer to use in areas with plants, in the event of excessive exposure, rinse all plants and water in all planted ground areas.

No special handling or on-site mixing is required. There are two standard methods of application. For best results, use D/2 undiluted and when air and surface temperatures are 5°C or above. Coverage based on medium deposits of 27m2per gallon.

Immediate Result Method

  • Apply D/2 with a brush, roller, hand pump sprayer or low-pressure power sprayer.
  • Allow undiluted D/2 to remain on the surface for 10-15 minutes.
  • Apply additional D/2 as necessary to keep the surface wet.
  • Scrub with a soft nylon or natural bristle brush, do not use a metal brush.
  • Mist lightly with water and continue scrubbing the area.
  • Rinse thoroughly with clean potable water.
  • Reapply if rain occurs within 12 hours of application.

A contact time of 10 to 15 minutes followed by scrubbing with a soft brush will loosen most biological and air pollutant staining. D/2 works with the elements, so results may continue to develop over the course of 2-3 days.

No Scrub/No Rinse Method

  • Using a sprayer (pump-up, low pressure or other), wet the entire surface with D/2.
  • Allow the solution to air dry.

D/2 works with the elements, with results occurring within one week to one month, depending on the severity of the soil. Reapply if rain occurs within 12 hours of application.

As with any cleaning product, always perform a spot test before proceeding.

. Get the best results with help from our guide, A Guide to Cleaning Rendered Walls, Stone Masonry & Brickwork.

 

See the Technical Data and Documentation section for detailed product information, application guidance, and datasheets. Always review any available documents before use. Each project is unique, always seek professional advice before undertaking a project.

Brand

D/2 Biological

Type

Cleaner

colour

Transparent

Use

External

Application

Brush, Sprayer

Weight

0.946L, 3.785L, 18.92L

Coverage

Approx. 27m² per gallon

Stock Quantities and Lead Times
Stock quantities and lead times are estimated and may differ or increase based on the order size and shipping method. If your timeline is sensitive, get in touch with the team.

Palletforce
Pallet orders with Palletforce Economy are typically dispatched from Cornish Lime within 1-2 business days, providing your item is in stock and not made-to-order. Once dispatched, Palletforce will deliver your order within 3-5 business days, depending on your location. Please ensure that your site can accommodate articulated lorries or similar-sized vehicles.

Local Delivery
The Cornish Lime team provides local delivery with a 18-tonne vehicle with a crane to assist with unloading. You will be contacted by phone to arrange delivery and ensure your site can accommodate our vehicle.

APC Parcel Courier
Orders shipped by APC parcel courier are typically shipped the next business day and arrive within 2-3 business days, providing your item is in stock and not made-to-order. APC will contact you via email with delivery information, and orders can be tracked on the APC website.

Premium or Expedited Service
For a premium or expedited delivery service, please get in touch to discuss if this option is available for your order.

For further information, see our delivery information page.

Reviews

  1. 4 out of 5

    It is a great product

    It is a great product. I find revisiting a headstone over a 6 month period gets the best results – agitating with a soft brush. The videos are misleading as to its effectiveness but it is the best product on the market.
    Verified Review

    Scott Wallace –

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