Control Joint Fillers

Fill control joints with SpecChem’s top-rated epoxy and polyurea control joint fillers. SpecChem control joint fillers, including Rapid Flex 90, Rapid Flex CJ, and SpecPoxy CJ, protect commercial and industrial concrete slab floors. Contractors install control joints to manage natural slab movement caused by drying shrinkage, temperature changes, and moisture variation after curing. These joints allow controlled movement at planned locations. This control helps prevent random cracking and preserves the slab’s long-term structural integrity. View Product Resource Page