Koster Repair Mortar per Bag of 50 Pounds

Koster Repair Mortar

KOSTER Repair Mortar is a watertight repair mortar and plaster with excellent adhesion even to old building material substrates.

With the addition of KOSTER SB Bonding Emulsion, it may be used as a polymer-modified cement mortar.

Fields of Application

KOSTER Repair Mortar can be used for waterproof repairs and touch up, creation of water-repellent plasters, concrete repair, or smoothing rough surfaces or joints prior to the application of bitumen thick film sealants, even under pressurized water. It can be used for fillets or cants in wall/floor junctions which are stressed by pressurized water prior to application of bitumen thick film sealants and cement-based coating.