Thompson's Damp Seal White 750ml High performance seal for sealing and covering damp, water and other household stain. Micro-porous formulation allows trapped moisture to escape. Can be applied directly to damp surfaces Permanently stops the reappernce of stains Colour: White Volume (ml): 750 Material: steel Weight: 1009g Dimensions: Depth 10.2cm x Width 10.2cm x Height 11.8cm