Blackfriar Concentrated Fungicidal Wash


Blackfriar Concentrated Fungicidal Wash when diluted, produces a solution for killing moulds, algae and other organic growths. Effectively sterilises surfaces prior to decoration.

Product Features

  • Kills organic growth on most surfaces.
  • Minimises risk of re-infestation.
  • Excellent coverage.
  • Interior and exterior use.
  • Professional Use Only
VAT excluded

£10.18 Tax incl.


Blackfriar Concentrated Fungicidal Wash when diluted, produces a solution for killing moulds, algae and other organic growths. Effectively sterilises surfaces prior to decoration. Surface biocide for professional use against fungal and algal growths on hard surfaces. For use only as a surface biocide.


Remove dirt or grease deposits and any flaking or loosely attached surface coatings. Scrape off mosses, lichens, mould or algae growths or use a stiff brush. The remaining spores will then be killed by washing down with one or two applications of Fungicidal Wash.


Users must comply in full with all their legal responsibilities under The Control of Pesticides Regulations 1986 (as amended), including complying with all Conditions of Approval.


Surface biocide for professional use against fungal and algal growths on hard surfaces. The contents of this 240ml container should be diluted with clean water to make 5 litres of a 0.6% benzalkonium chloride solution. Apply to all infected surfaces and adjacent areas. Allow 24 hours for the treatment to be fully effective. Two applications are recommended for heavily infected surfaces.


Apply 1 litre of diluted product per 6-8 square metres by brush or spray. Very absorbent surfaces may require more. Apply diluted product as necessary by cloth.

Clean Up

Clean equipment with plenty of water after use.


ACTIVE INGREDIENT: BENZALKONIUM CHLORIDE 13% W/W (130 G/L) CONTAINS: Quarternary ammonium compounds, benzylcoco alkyldimethyl, chlorides. Causes burns. Very toxic to aquatic organisms. The COSHH (Control of Substances Hazardous to Health) Regulations 2002 (as amended) apply to the use of this product at work.


This material and its container must be disposed of in a safe way. Wear suitable protective clothing, gloves and eye/face protection when diluting. Avoid contact with skin. When using do not eat or drink. Avoid contact with eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Do not empty into drains. Do not contaminate ground, waterbodies or watercourses with chemicals or used container. KEEP AWAY FROM TREATED SURFACES UNTIL DRY.

In case of insufficient ventilation wear suitable respiratory equipment. Guidance on suitable respiratory protective equipment and eye protection is provided in HSE Booklet HS(G)53: “The Selection, Use and Maintenance of Respiratory Protective Equipment - A Practical Guide”.

Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer). WASH HANDS AND EXPOSED SKIN before meals and after use. Keep out of the reach of children. KEEP IN A SAFE PLACE. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

Product Features

  • Kills organic growth on most surfaces.
  • Minimises risk of re-infestation.
  • Excellent coverage.
  • Interior and exterior use.

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 for more information

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details

Data sheet

Blackfriar Professional
Base Type
Water Based
Interior/Exterior Use
6-8m² per litre
Recommended Thinner/Cleaner
Touch Dry
24 Hours
UN Number

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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