HMK S731 Silane Impregnator - 32oz.

HMK® S731 is a ready to use silane based impregnator that reduces the penetration of water and dirt into all natural stone surfaces (soft and hard stones), concrete, and unglazed bricks. HMK® S731 is vapor permeable, suitable for interior and exterior use, and will leave little to no aesthetic change on the surface.