Chowgule Koster India Construction Chemicals Pvt. Ltd. Manufactures Solvent-free Water-activated Polyurethane Gel. Chowgule Koster India Construction Chemicals Pvt. Ltd. Supplies NB 1 Grey, NB Elastic Grey powder & liquid and the SB bonding emulsion. Solvent-free Water-activated Polyurethane Gel is capable of incorporating water in amounts up to 20 times of its own volume permanently in a moisture saturated environment. Solvent-free Water-activated Polyurethane Gel seals the positive side of existing structures with ground contact by injection from the negative side. It is also used to seal voids, sleeves, pipe intrusions and joints in masonry, concrete and floors. This is suitable to be injected into highly porous and craggy construction units and leaves a highly efficient grout curtain. This comes under the brand name of Koster KB Pur Gel.
