Patent ID: 8680193

Claim:
An aqueous dispersion primer for a subfloor common in interior construction wherein the subfloor includes concrete, cement, cement screed, cement flow screed, cement motar, cement-bounded wood fibre, ceramics, natural stone, calcium sulphate screed, calcium sulphate flow screed, magnesite screed, mastic asphalt, wood, fibreboard, plywood, gypsum, gypsum fibreboard, gypsum plasterboard, hardboard or mineral leveling compound, said primer comprising, in an aqueous dispersion, the following materials: a) ≧23% by weight of silanised styrene-acrylate copolymer, wherein an average particle size of the silanised styrene-acrylate copolymer is less than 150 nanometers and the silanised styrene-acrylate copolymer dispersion is capable of being self crosslinkable during drying at room temperature, b) ≧7.5% by weight of vinylidene chloride-acrylate copolymer, c) ≧0.5% by weight of styrene-butadiene copolymer-paraffin wax mixture and d) ≧0.5% by weight of one or more additives, the percentage data relating to a mass of the aqueous dispersion primer, ready for handling.