Eprok grout & seal is a two part epoxy tile grout made of epoxy resin & hardener, designed as a tile grout sealant conforming to EN13888 RG. Colour fast the rich colours are achieved using coloured murano sand & high quality pigments from Germany. Unlike traditional tile grouts it works by forming a high strength waterproof bond to the side edges of the tiles, once tooled and cured excess can then be easily removed from the face of the tile using a craft blade. Leaving sealed, bonded, waterproof, flexible, & profiled grout lines.Using the tools is possible to achieve very neat uniform lines. Looking good is only part of the story ,ease of use, performance, service life and minimal maintainence being its real advantages over other available products. Indoor use easily keep clean with gentle soap and water with minimal effort, no more scrubbing moldy grout and silicone. Dirt bacteria & mold are unable to penetrate the structure,easily wiping away, outdoor use can simply jetwash it clean. Forms the strongest waterproof bond for outdoor porcelain pavers, that are unlikely to fail, crack or break up.