Clearwater Enviro Tech Nevada TEC AccuColor Premium Sanded Grout, 933 Standard Gray, 33-0432-3011

TEC AccuColor Premium Sanded Grout in 933 Standard Gray, part 33-0432-3011, is a polymer enhanced portland cement grout for tile joints 1/8 in. to 1/2 in. wide. Made by TEC Specialty Products, it meets ANSI A118.6 when mixed with water.

What it does

The sanded formula is meant mainly for floor tile, and for walls and countertops with wider joints. AccuColor chemically controls the cure so the color comes out even, and TEC rates it for interior and exterior work in high traffic or wet conditions. For freeze and thaw exposure, or wherever high water resistance or extra flexibility is needed, TEC calls for its Acrylic Grout Additive in place of water, which also brings the grout to ANSI A118.7.

Working with it

Joints should be clean and at least two thirds as deep as the tile is thick. Mix the powder into cool water, let it slake 10 minutes, remix, then pack the joints with a hard rubber float. Pot life is 1 to 2 hours. Do not grout below 50 F. Initial cure takes 24 hours and final cure 21 days.

Before you order

Sanded grout can scratch polished marble, polished porcelain, glass, metal and glazed tile, so test a small area first. Keep new joints free of traffic for 24 hours and out of water or freezing for at least 72 hours, and seal them as TEC recommends. For tile that will sit under water, confirm the grout and additive choice with TEC before starting.