MarMac MacWrap Repair Coupler

External seals for RCP & manhole joint rehabilitation

MacWrap Repair Coupler is an advanced, external joint coupler, specifically designed to repair compromised joints of precast structures while simultaneously preventing infiltration. MacWrap Repair couplings can be used for the rehabilitation of tongue & groove and bell & spigot reinforced concrete pipe as well as manhole sections, restoring the integrity of damaged joints.

With its membrane comprised of the same materials as a standard MacWrap, the width of MacWrap Repair Couplers is increased to 24”, four compression bands are utilized versus the standard two, and the thickness is increased by approximately 50%. This is a heavy-duty, 3-ply coupler as the membrane contains an additional layer of polyethylene and mastic.

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