Patent ID: 8586137

Claim:
A method for spraying particulate solids onto a substrate, which is covered by a wet and/or adhesive synthetic resin layer, comprising the steps of: coating the substrate ( 18 ) with a wet and/or adhesive synthetic resin layer, building up gas pressure in a line ( 4 ), generating a pressure change in the line ( 4 ), swirling and carrying along particulate solids (K) having a specific weight of more than 2 g/cm3 in the line ( 4 ), ejecting swirled, particulate solids (K) from the line ( 4 ) into the wet and/or adhesive synthetic resin layer ( 20 ) of the substrate ( 18 ), wherein the particulate solid (K) is applied to the substrate ( 18 ) with an accuracy of up to ±0.5 g/m 2 .