Dispensing tool for FST-MINI-1. Effectively Seals Small Conduits and InnerductsPolywater® FST™ MINI is an expanding, quick-setting, “closed-cell" foam that is injected into a conduit to provide a watertight seal. The seal is superior to pliable duct putties and “open-cell” aerosol canned foams.Recommended for small conduits (less than 1.5 inches (40 mm)).
