For grouting porous floor and wall tiles with joints up to 1/8" wide. Use with glazed tile and polished marble that can be scratched by sanded grout. Use on floors, countertops, walls, ceilings, showers, fountains and pools. Cures hard, is non-shrinking and durable. Meets ANSI A118.6 specifications. Coverage will vary depending on tile size and joint width.