Larsen Powder Waterproofer is a white powder admixture used to increase the water repellency of render, mortar and concrete.
By increasing the water repellency but maintaining the vapour permeability of a mix, there is a lower water absorption, lower risk of efflorescence and staining and a higher durability.
Use of Powder Waterprooofer in render base coats also reduces the suction to allow easier application of following render coats. Permeability and absorption reduced.
