Mouldstop Primer

Brand: RA&Sons

MOULDSTOP PRIMER is a mould resisting primer containing antibacterial additives. It is part of the MOULDSTOP paint system. It is available in 5ltr and 14ltr tubs.

Surface Preparation

All surfaces should have already been treated with RASAN so should be sound, dust free and clear of any surface contaminants like oil, grease or salt efflorescence. Fill any imperfections in the substrate.


MOULDSTOP PRIMER should be diluted with clean water to a 1:1 ratio and then applied by brush or roller. After 12 hours apply MOULDSTOP as a painted finish or a suitable render if required.



  • At temperatures below +5°C or above +35°C

Antibacterial Binding Primer

Packaging & Storage

MOULDSTOP PRIMER is supplied in 5L and 14L buckets and can be stored up to 6 months in a cool dry place in its original unopened packaging

Safety Notice

Before using MOULDSTOP PRIMER it is recommended to consult the product safety data sheet available on request

Technical Data

Type of Binder
Acrylic Emulsion
Minimum Film Forming Temperature
1.01 Kg/L
Solid Content
Cat VOC in Accordance with dir EU 2004/42/CE cat. A/c Exterior Walls of Mineral Substrate
The data and statements in this information sheet refer to laboratory tests in our possession, conducted in standard environmental conditions. Practical applications on site according to these conditions of use may result in different data readings. Due to the wide variety of possible uses and applications, the end-users should independently determine the suitability of the material for their specific purpose prior to use. R.A. & SONS Manufacturing Ltd. reserves the right to make technical modifications of any kind without prior notice.

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