Fosroc Brushbond RFX UltraFlex — elastomeric cementitious waterproofing coating

Fosroc Brushbond RFX UltraFlex is an advanced, high-performance two-component cementitious acrylic polymer-modified waterproofing coating from Fosroc Chemicals India Pvt. Ltd. — engineered to protect concrete and masonry structures with a seamless, highly flexible, and elastomeric waterproof membrane capable of bridging shrinkage cracks and tolerating thermal and structural movements.

Unlike standard cementitious waterproofing coatings, Brushbond RFX UltraFlex delivers superior elongation and elasticity — allowing it to absorb structural movement and seamlessly bridge cracks without compromising waterproof integrity. It provides an excellent barrier against long-term weathering, UV attacks, and extreme climates, while strongly resisting carbon dioxide, chloride, and sulphate ions to prevent concrete carbonation and reinforcement corrosion.

Its breathable and non-toxic formulation makes it safe for potable water tanks, allowing underlying water vapor to escape safely while blocking water entry. Easily applied to damp substrates via brush, roller, or spray with no additional priming required — making it one of the most versatile and user-friendly waterproofing chemicals trusted by applicators and contractors across India for roofs, terraces, basements, water tanks, swimming pools, and below-grade structures.