SPECTRALOCK® Grout is a a stainproof* (see limitations) epoxy based grout that utilizes a revolutionary breakthrough in technology. Its unique cross-linking system performs like an epoxy with respect to color uniformity, durability, and stain protection and it is easy to use like a portland cement base grout.
* Stain proof (residential installation only) to common household cleaners, liquids and other goods. Clean all spills immediately. See limitations on Datasheet
United States Invention Patent No.: 6881768 (and other Patents)