Wykamol Renderproof

Wykamol Renderproof is a BBA approved cement render additive which is waterproofing and plasticising. It is for use in external render coats after the insertion of a damp proof course such as Ultracure or Siliconate K and other waterproofing applications. Wykamol Renderproof prevents the transfer of salts to the surface by minimising the passage of liquid water through the pore structure of cement renders. Ideally the replastering should be undertaken to surface-dry walls and wherever possible, a drying period of at least 14 days should be allowed between installation and re-plastering.