Mould is not only unsightly, but is responsible for the dissemination of airborne spores that can possibly cause asthma in some children and respiratory allergies and disease in people they infect. They are particularly dangerous to people with serious lung problems such as cystic fibrosis. Fungi can cause serious damage in property resulting in critical losses of health, yield, quality, and profit. MUR-TU® Fungicidal Wash is a biocidal chemical compound or biological organism used to kill parasitic fungi or their spores.

MUR-TU® Fungicidal Wash has been specially developed for use prior to painting. It kills and prevents the reappearance of unsightly growths of mould, algae, fungi, moss, etc. which can cause paint to peel off or leave bad black surfaces which are not aesthetically acceptable. The solution is also effective in removing algal contamination from paths and other surfaces.

  • Chlorine free biocide for neutralising active mould, fungal and bacterial growths and spores;

  • Can be applied to damp surfaces;

  • Water based, therefore all equipment can be cleaned with water.



  • Roofs and fascia boards - 1 Litre in 20 Litres Water;

  • Paving walk ways, floors – 1 Litre in 20 Litres Water;

  • Bathroom and shower walls and ceilings – 1 Litre in 20 Litres Water;

  • Painted or plastered walls, parapet walls and paved areas - 1 Litre in 20 Litres Water;

  • Problem Areas - 1 Litre in 4 Litres Water;

  • Effective as an algaecide and slimicide (antimicrobial pesticide used to kill slime-producing microorganisms such as algae, bacteria, fungi, and slime moulds) in swimming pools, industrial water reservoirs and cooling towers – 1litre to 20 000 Litres Water.


Cationic Surfactants (Quaternary ammonium compounds 5,4%), 94,6% Deionized HHO.


COVERAGE (THEORETICAL)  -  1 - 4 sq.m. per litre for entire application system;
FLASH POINT  -  Not applicable;
COLOUR RANGE  -  Clear Liquid Only;
PACKING SIZE  -  1 and 5 Litres.


  1. Apply to all mould infected and suspected areas liberal wash of MUR-TU® Fungicidal Wash;

  2. Allow to remain on the surface for a period of not less than 4 hours then scrape off all mould and loose material, remove from the building and burn immediately;

  3. Apply a further wash of the solution and let it remain on the surface for a minimum of 72 hours for complete sterilization;

  4. Wash off the solution. Make good any defects in the surface before re-painting.


  1. Algae attack on exterior surfaces should be treated as described above;

  2. However, if treated in the early stages, it is sometimes possible to completely remove the stains, after sterilising, using stiff fibre brushes, without the need for repainting;

  3. To prevent further contamination it is important to remember that algae, moss and other contamination present on the top of walls, flat roofs, canopies and other flat surfaces, should be removed even though these surfaces are not to be painted;

  4. Such contamination is harmful and will encourage growth spread as rainwater runs off the flat surface, down the wall elevation.


  1. After thorough treatment of the surface, the affected areas should be primed and painted in accordance with the recommendations given for the various surfaces;

  2. In buildings conducive to mould formation the use of special fungicidal quality materials are recommended;

  3. When decorating walls in kitchens and bathrooms and other areas where steam is likely to condense is, the use special fungicidal quality materials must be considered.


  • The ambient temperature must be between 4ºC and 30ºC and humidity between 10% and 65%;

  • Do not paint too early as the wall may still be damp - paint only when the walls are dry;

  • Do not paint in too hot weather, rather paint early morning and after lunch, the slower the MUR-TU® FUNGICIDAL WASH® dries, the better the results;

  • Avoid applying under adverse weather conditions as this could result in poor product performance.


Disinfecting is a relatively user-friendly activity if the proper precautions are taken to ensure safety.

  • It is advisable to wear gloves as skin irritation could occur with prolonged exposure;

  • Always keep out of reach of children and animals;

  • Do not take in orally - harmful if swallowed. Seek medical attention and do not induce vomiting;

  • If accidental contact with skin, wash immediately with soap and water or a good quality skin cleaner;

  • If accidental contact with eyes, rinse immediately with plenty of water and seek medical advice;

  • Wear a respirator if the area being treated cannot be adequately ventilated, and work for short periods only;

  • Ventilate the area to be treated, opening all doors and windows and using fans during application and drying;

  • Choose an area inaccessible to children and pets, and when they are thoroughly dry, take them to a toxic-waste dump site.


Different surfaces and environmental conditions require specific cleaning to produce the best possible results - It is, therefore, recommended that you contact a representative from Classic Paints for advice on all your disinfectant requirements, whenever possible.

The information, and, in particular, the recommendations relating to the application and end-use of Classic Paints products, are given in good faith based on Classic Paints’ current knowledge and experience of the products when properly stored, handled and applied under normal conditions. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the Product Data Sheet for the product concerned.


07/04/2020 - This supercedes all previous publications - This technical data furnished is obtained from controlled laboratory tests under ideal application conditions. No guarantee of any performance characteristic is given or implied and we do not hold ourselves responsible for any consequential damage of whatsoever nature that may arise from use of our products. In the event of a proven product fault our liability will be limited to the replacement of the product only. It is the user’s responsibility to confirm the currency of product data sheets.

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