Custom Building CPBG38610N NonSanded Grout, 10 lb, Box, Oyster Gray, Powder

Portland cement dry grout used for joints up to 1/8" wide. For highly glazed ceramic tile or highly polished marble or natural stone that can be scratched by sanded grouts. Use on floors, countertops, walls, ceilings, showers, fountains and pools. Non-shrinking and durable. Meets ANSI A118.6 specifications. Rated (ASTM C67) for residential to extra heavy commercial use.