Infrastructure products, pipe couplers, & protective coatings for stormwater, waste & drainage systems
Look no further than MarMac Construction Products for all your corrugated metal pipe (CMP) and corrugated steel pipe (CSP) jointing and sealing needs. We manufacture everything you need to keep your underground CMP drainage system free from infiltration and exfiltration.
MarMac CSP Couplers and Flat Band Gaskets are the industry’s premier solutions for connecting rerolled or non-rerolled, gravity-flow pipe. Our CSP Couplers are over-engineered to be the finest couplings available… they’re easy to install, highly-durable, nearly resistant to failure, and impressively far exceed NCSPA’s watertight, hydrostatic requirement.
Among our several CMP sealing solutions, MarMac Seam Seal is used during the fabrication of corrugated metal pipe. Seam Seal is a butyl rubber cord placed into the pipe lock seam during the pipe manufacturing process, sealing & reinforcing the hydrostatic rating of CSP seams. See below for our full list of CMP sealing products.
External couplings for joining corrugated metal pipe
External couplers for joining pipes of different materials and/or diameter
External gaskets for jointing corrugated steel pipe
Sealing cord for corrugated steel pipe fabrication
External filter fabric wrap for underground pipe joints
Filter fabric rolls for sub-grade erosion control