Polymer modified grout is a type of grout that has been enhanced by the addition of polymers to improve its performance properties compared to traditional cement-based grouts. These polymers are typically in the form of latex or other liquid or powder additives.
Key Features:
Improved Bond Strength: The polymer addition increases adhesion between the grout and the surrounding surfaces such as tiles or concrete.
Better Flexibility: Polymer modified grout can accommodate slight movements in the substrate without cracking, which is especially useful in areas prone to vibration or thermal expansion.
Reduced Water Absorption: The grout becomes more water resistant, making it suitable for wet areas like bathrooms, kitchens, swimming pools, and exterior installations.
Higher Durability: It has enhanced resistance to wear, abrasion, and weathering, leading to longer service life.
Shrinkage Control: Polymer modification helps reduce shrinkage during curing, minimizing the chances of cracks forming.
Chemical Resistance: Some formulations provide resistance to chemicals, making them useful in industrial and commercial environments.
Common Uses:
Tile joints in residential and commercial buildings
Grouting in wet or submerged areas
Repairs in concrete structures
Areas exposed to temperature changes or movement
Types of Polymers Used:
Acrylics
Styrene butadiene rubber
Epoxy resins in some advanced systems
Application Notes:
Surface preparation is essential to ensure good adhesion.
Mixing should follow the manufacturer's guidelines for