Ronseal 32010 Thompsons Damp Seal 2.5 Litres RSLTDS25L

High performance seal for sealing and covering damp, water and other household stains.
Micro-porous formulation allows trapped moisture to escape.
Can be applied directly to damp surfaces and permanently stops the reappearance of stains.
Coverage to 7m²/L depending on the porosity of the substrate.
Allow 4 hours between each coat.
After the second coat, leave for a further 4 hours before decorating.