Seal Wrap is a heavy duty anti-infiltration barrier membrane designed to seal joints on arched and span culverts, boxes, and other precast concrete structures.  Mar Mac Seal Wrap utilizes our aggressive and permanent mastic which “cold flows” at ground temperature into the pours of concrete and permanently bonds with the structure wall, permanently sealing out infiltration from the system.

Seal Wrap incorporates high-strength, shear and puncture resistant internal reinforcing fabric with an impervious, chemical resistant cross-laminated polyethylene outer cover for optimal long term performance even under bad field conditions.

Rolls are of customizable width and come complete with peel able protective release film ready for application to individual joint sizes with minimal waste.