Johnstones Trade
Damp Proof Paint White 5L

Primes, seals and eliminates stains on damp interior walls and ceillings.
Damp Proof Paint White

In detail

Johnstone's Trade Damp Proof Paint is a solvent-based matt primer or finishing coat for interior use on damp wall surfaces.

Suitable for use on concrete, masonry, cement render, blockwork and brickwork where it can be used as a finish or as a damp-proofing primer sealer before overcoating with Johnstone's Trade Anti Mould Acrylic or a suitable decorative finish. 

It uses Pliolite resin based formulation with a water-reactive agent to repel surface moisture.

Application is by brush with coverage up to 4 sq/m per litre.

Recoatable between 16-24 hours.

Application Methods
Up to 10sq/m per litre 
VOC level
Not Recommended 
12-24 hours 
Brush cleaner or White spirit 

Additional information

Johnstone's Damp Proof Paint is a white Pliolite ® resin based paint for application to damp interior wall surfaces. Can be left as a finish in its own right or as a damp-proofing primer-sealer prior to over-painting with Johnstone's Anti Mould Acrylic, Anti-Condensation or other Johnstone's decorative paints. It incorporates a water-reactive agent which takes care of residual surface moisture, but does not remove the need to repair structural faults that allow water to penetrate into the fabric of the wall.


This paint should be applied preferably to unpainted masonry surfaces. However, if these have been previously painted, remove as much of the old paint as possible by thorough scraping and wire brushing. Avoid the inhalation of dust. Wear a suitable face mask if dry sanding. Treat any mould or lichen with Johnstone's Sterilisation Wash before removing with a scraper or stiff brush, then treat surface again with Johnstone's Sterilisation Wash. Special precautions should be taken during surface preparation of pre-1960s paint surfaces over wood and metal as they may contain harmful lead.


  • Stir well before use.
  • A thick film is necessary for maximum effectiveness.
  • Apply by brush or roller.
  • Allow 16 to 24 hours between coats.
  • Follow with subsequent Johnstone's decorative finish, or leave as a finish in its own right.
  • Ensure maximum ventilation during application and drying.