American Polywater’s Duct-Sealant Kit
American Polywater’s FST foam closed-cell duct-sealant kit includes an FST foam sealant caulking tube, mixing nozzles, damming and abrasive strips and additional accessories need for a complete seal. It is designed for PVC, rigid steel, EMT, IMC, fiberglass and polyethylene conduits larger than 2 in. It holds up 22 ft. of water-head pressure and 90 ft. of surges, and it can seal up to 8 in. in diameter. Cured foam is semipermanent and can be removed.