TRUBUILD AQUALOCK FLEXI is a premium two-component, acrylic-modified, elastomeric cementitious waterproofing membrane coating developed for concrete and masonry substrates. It combines a high-build polymer liquid (Part A) with a cementitious powder (Part B) to create a highly flexible, seamless, and durable waterproof barrier. This advanced formulation helps protect structures from water ingress, hydrostatic pressure, dampness, and efflorescence while maintaining long-term elasticity.

Unlike conventional cementitious coatings, AQUALOCK FLEXI delivers higher elongation and crack-bridging capability, making it suitable where structural movement, thermal expansion, or minor substrate cracking may occur. It performs under both positive and negative water pressure conditions, making it effective for internal and external waterproofing applications.

The product is CFTRI approved, non-toxic, VOC-free, and compliant with EN 12390-8:2019, enabling use in water-retaining structures where safety and durability are important.