Polywater Duct Sealant
FST™ Duct Seal is a closed cell foam solution for sealing empty and occupied conduits. Closed cell foam is far superior to open cell spray canned foams, providing a 22ft water head pressure over an extended period of time. Seal conduits and protect cable infrastructure from water, dirt, gases and rodents. The kit contains a cartridge filled with a two-part foam base, which is mixed in equal parts as it is pushed through a mixing nozzle. When mixed and injected, the foam expands and hardens, keeping contaminants out
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