RectorSeal® Draft-Block™ Expanding Polyurethane Foam, Aerosol Can, 12 oz, Composition: PolymethylenepolyphenylIsocyanate, Dimethylether, Propane, Slight, 1.1 Specific Gravity, -156 deg F Flash, <100 g/L VOC, Flammability: 4
Draft-Block™ is a 1-component expanding polyurethane foam sealant, dispensing as a bead from an aerosol container to fill voids and cavities on flat/irregular surfaces. When cured it is odorless, non-corrosive and inert, containing no urea formaldehyde.