DESCRIPTION R SEAL Cement Grout Additive is a white, synthetic polymer emulsion for use with cement based Grouts. R SEAL Cement Grout Additive is suitable for use in interior and exterior locations in both dry and wet service conditions. R SEAL Cement Grout Additive is a polymer additive for joint fillers. eg: Coloured tile grout and wide joint grout. WHERE TO USE: Walls, floors, interior, exterior, wet areas and swimming pools etc., Used in place of water, R SEAL Cement Grout Additive improves the performance of cement grouts for all types of: ceramic tiles, bricks, marbles, granite and natural stones.