Enhance your masonry grout performance with Sika’s Cavex® Expansion Agent. Designed for site-mixed concrete and mortar, this admixture eliminates plastic settlement by generating controlled expansion before setting. It ensures tighter bonding and better void filling in block infill and grout injection projects. Cavex® helps your mix maintain contact pressure against porous blocks, improving composite adhesion without the need for vibration—perfect for DIYers and trades aiming for durable, high-quality masonry repairs.
