Proven long-term corrosion protection for precast concrete pipe, concrete structures, and monolithic tunnels.
T-Lock® is a T-ribbed polyvinyl chloride sheet lining material designed specifically to protect new concrete trunk sewers, interceptors, manholes, structures, and monolithic tunnels against hydrogen sulfide gas, acids, alkalis, salt, and other forms of corrosion. Manufactured from high-molecular-weight vinyl chloride resins that are extruded under high temperature and pressure, T-Lock provides a dense, impervious, and continuous plastic lining. Applied during concrete casting, concrete flows around the molded T-ribs and permanently locks the liner into place as a part of the substrate. Since its introduction in 1947, T-Lock has provided outstanding resistance to chemicals and abrasions as well as delamination due to high ground-water back pressure.
Arrow-Lock® Sheet Lining System
Like T-Lock, Arrow-Lock® Sheet Lining System is a continuous, impervious, plastic lining that protects concrete in new projects as well as rehabilitation projects. Composed of thermoplastic polyvinyl chloride resins, it is flexible and can be easily shaped over intricate forms, making it ideal for manholes, lift stations, digesters, primary effluent channels, sludge wet wells, primary sedimentation tanks, and headworks. Arrow-Lock consists of two distinct products: a proprietary PVC sheet liner with arrow-shaped ribs and the Arrow-Lock mastic, a two-part epoxy used to mechanically lock the lining to the concrete substrate.
The Arrow-Lock epoxy gel mastic fills voids and mechanically locks the lining permanently into place. Arrow-Lock is designed so that the mastic does not adhere to the flat PVC lining, allowing for any possible future ground water seepage to drain away in the channels without damaging the lining.
The mastic is designed to not adhere to the Arrow-Lock Sheet Liner. The absence of an adhesive bond between the PVC lining and the intermediate mastic allows possible future ground water seepage to drain away without damaging the lining.
Eastern, Midwest, and Texas: Bob Fisher, 936-524-4167, email@example.com
Northwest, Southwest, Canada, and Mexico: Michael Saltikov, 951-232-6174, firstname.lastname@example.org
Technical Resources: Richard D. Mielke, P.E., Director of Engineering, 919-847-6077, email@example.com