Precast & Concrete

MarMac has been an active player in the advancement and innovation of the precast & concrete infrastructure industry since our company’s founding in 1953. We manufacture couplers, wraps, and seals to the highest standard of quality for the coupling and hydrostatic performance of concrete drainage systems around the world.

Use MacWrap Couplers to joint and seal precast structures including reinforced concrete pipe (RCP), manhole sections, box culverts, and more. MacWrap Repair Couplers are available to restore the structural integrity of damaged and compromised RCP or concrete structure joints, while our Chemical-Resistant MacWrap is meant for use in high-level hydrocarbon soil areas.

MarMac’s Construction Products are manufactured in McBee, South Carolina and we’re proud members of the National Precast Concrete Association (NPCA) and several other highly-reputable precast associations.