There are a number of reasons why it may be necessary to seal a duct, to stop water ingress and containment of rodents to name but two, the FST Duct Sealant Kit is a proven method. Simply insert the two foam blocks into the end of the ducts, one further into the duct and one at the edge, then inject the two-part foam formulation into the resulting gap. The two-part foam will Ôset' almost immediately to quickly and permanently seal your duct.

Each kit comprises: 1 x 6oz cartridge (FST-180), 2 x 24" Foam damming strips (FST-DAM), 3 x Mixing nozzles, 1 x Pair disposable gloves, 1 x Positioning rod for foam dam, 1 x Pre-treating wipe (CD-1), 1 x Resealing cap & 1 x Instruction sheet