Polymer modified grout is a type of grout that has been enhanced with polymer additives to improve its performance. These polymers can be in the form of liquid or powder and are mixed with the cementitious grout. The addition of polymers increases the grout’s adhesion to surfaces, flexibility, and resistance to cracking and water penetration. It also improves durability and makes the grout suitable for areas subjected to movement, moisture, or heavy loads. Polymer modified grout is commonly used in construction and tiling applications where standard grout might not provide sufficient strength or durability.