KOSTER NB 1 Grey

Description

KOSTER NB 1 Grey is a rigid coating for waterproofing masonry and concrete. It forms a waterproof barrier on the substrate and it contains pore/capillary plugging and crystallizing agents. These penetrate into the substrate where they form crystals which fill voids and capillaries, producing an integral waterproofing effect. KOSTER NB 1 Grey is approved for use in drinking water environments according to NSF/ANSI 61. KOSTER NB 1 Grey is used on the positive or negative side of structures. It resists over 200 psi of hydrostatic pressure and is a permanent waterproofing system as long as the substrate remains sound. Freezing and thawing cycles will not affect the material. KOSTER NB 1 Grey is supplied in powder form. It can be mixed with water or a solution of KOSTER SB Bonding Emulsion and water. KOSTER SB Bonding Emulsion is added to improve curing and adhesion. KOSTER SB Bonding Emulsion also improves the abrasion resistance and elastic properties of the material.

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