DRYINJECT 2000

Single-component polyurethane resin, hydro-expansive, solvent-free, ideal for sealing small and large water leaks in concrete or brick constructions through injections, through static cracks or voids to be filled. DRYINJECT 2000, when in contact with water, forms a semi-flexible closed-cell polyurethane foam. The reaction speed can be easily programmed based on the amount of accelerator (comp. B), between 6% and 10% of the weight of comp. A. Adding a greater quantity of accelerator (comp. B) results in a reduction of reaction time. The final product, once expanded, neither swells nor shrinks. Within a fairly short time, good pressure resistance is obtained. The formation of CO2, typical of the reaction, provides additional pressure favoring the penetration of the resin into the cracks. In a free environment, the resin expands by 2000% (20 times its initial volume).