For pre-treatment and priming of mildew and algae infested or endangered, absorbent exterior and interior substrates.

Field of Application

Aqueous micro-biocide to support the cleanability of porous, absorbent substrates, either mildew or algae infested or at risk of being attacked. To be used as priming coat on exterior and interior surfaces before applying subsequent coatings.

Material Properties

  • Water-based.
  • Disinfecting.
  • High penetrating power due to cation technology.
  • Diffusible, sorption-capable.

Material Base / Vehicle

Cationic synthetic resin dispersion/emulsion.

Packaging/Package Size

10 litres




Keep in a cool, but frost-free place.


Approx. 1.02 g/cm3

Suitability according to Technical Information No. 606 Definition of Application Areas

Interior 1Interior 2Interior 3Exterior 1Exterior 2
(–) inapplicable / (○) of limited suitability / (+) suitable

Suitable Substrates

The substrates must be sound/stable, dry, clean, and free from all substances that may prevent good adhesion. In Germany: Follow VOB, part C, DIN 18363, section 3. 
See Technical Information No. 650 for suitability of the product on miscellaneous substrates and their special treatment. 
Remove accumulations of mould on interior surfaces by wet cleaning, in compliance with legal and official regulations (follow e.g. Ordinance on Biological Agents and Ordinance on Hazardous Substances). 
Remove existing mildew/mould and algae growth on exterior surfaces by water jet, in compliance with the regulations. Remove suckers of creepers by mechanical means and/or by deseaming.


Always apply the product undiluted.

Surface Coating System

Apply undiluted product to the saturation point of substrates. If necessary apply wet-on-wet, intensively working with a brush or special paint-brush, suitable for large-scale surfaces (whitewash brush). 
The priming coat must not form a continuous/compact, glossy film on the surface.


150 - 200 ml/m2, depending on substrate absorbency. 
Determine the exact amount of material required by coating a test area on site.

Application Conditions

Lower Temperature Limit for Application and Drying:
+ 5 °C for product, substrate and ambient air.

Drying/Drying Time

At +20 °C and 65 % relative humidity recoatable after approx. 12 hours. 
Lower temperatures extend the drying time.


Brush or paint-brush.


Do not apply on horizontal surfaces exposed to rain/water or moisture.

Compatibility with other Materials:
Do not mix FungiGrund with other materials.

Please Note (Status as at Date of Publication)

Handle biocidal products with care. Read Label and istructions before use.

Keep out of reach from children. Ensure good ventilation during use and drying. Do not eat, drink or smoke while using the product. In case of contact with eyes or skin, immediately and thoroughly rinse with water. Do not allow product to enter drains, waterways or soil. Clean utensils immediately after use with soap and water. Do not breathe spray dust. Further information: See Material Safety Data Sheet (MSDS).

Contains: 2-octyl-2H-isothiazol-3-one, 1,2-benzisothiazol-3(2H)-one, 2-methyl-
2H-isothiazol-3-one. May produce an allergic reaction. In Germany: Advice for allergy sufferers with isothiazolinone allergy: Hotline 0180/5308928
(0.14 €/minute from German landline, MTS max. 0.42 €/minute).

Labelling according to (EU) 528/2012: N-24781 (BAuA No, Germany) Contains: Alkyldimethyl benzyl-ammoniumchloride (CAS No. 68424-85-1), 4.0 g/l Octylisothiazolinone (CAS No. 26530-20-1); 0.5 g/l.


Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures.
In Germany: Only completely empty containers should be handed in for recycling. Dispose containers with residues of liquid product via waste collection point accepting old paints and enamels. Dispose dried/hardened product residues as construction site/demolition/municipal or domestic waste.

EU limit value for the VOC content

of this product (category A/h): max. 30 g/l (2010). This product contains max. 15 g/l VOC.

Product Code Paints and Enamels

M-GF01 (Germany)

Substances of Content - Declaration

Polyacrylate resin, water, additives, preservatives (Methyl-/Benzisothiazolinone), biocidal agents: Alkyldimethyl benzyl-ammoniumchloride, Octylisothiazolinone.

Further Details

See Material Safety Data Sheet (MSDS).
Germany: Registered no. BAuA: N-24781

Technical Assistance

As it is impossible to list herein the wide variety of substrates and their specific problems, please request our technical assistance in case of queries. We will describe appropriate working methods, if a substrate not specified above is to be coated.

Customer Service Centre

Tel.: (+49) 0 61 54 / 71 17 10
Fax: (+49) 0 61 54 / 71 17 11

International Distribution: Please see

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