Damp Seal Primer & Undercoat
Valspar Damp Seal permanently seals and blocks damp stains on interior walls and ceilings, hiding the stains and ensuring the top coat of emulsion is fully protected.

Our Damp Seal is a breathable primer helping moisture to escape through the film of the paint and can be applied directly onto damp wall thanks to its powerful performance. With its high coverage Valspar Damp Seal is quick and easy to apply, ensuring a faster and more durable finish for your decorating project. For the best results, use with Valspar Premium Blend v700™ Walls & Ceilings.
Available in 750ml, 2.5L - Pure Brillant White
Interior/exterior | Interior |
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Room | Living room, Hallways, Bedrooms, Dining room, Office |
Surface | Damp interior walls and ceilings |
Touch dry | 1 hour |
Recoat time | 4 hours |
Coverage | 3.75m² per 750ml. 5m² per litre |
VOC level (g/l) | < 475.0 g/l |
Viscosity | 160 - 170 Kerbs Units |
Storage instructions | Keep out of reach of children. Store paint between 5°C and 35°C in a dry area. Protect from frost. |
Water or solvent based | Solvent based |