Fire & Intumescent Sealant
Dow Corning Fire & Intumescent Sealant. The Intumescent and Acoustic Sealant seals joints and service penetrations within walls, partitions, fire rated door frames and glazing systems. It can also be used to seal joints within party walls to provide an acoustic seal. Dow Corning Fire and intumescent sealants are available in a silicone form Dow Corning Firestop 700 and in acrylic form Dow Corning Firestop 400.