Duct Sealer Grey Adhesives / Oils, Macsim

MF90 Duct sealant is a water based acrylic fire stop sealant that provides movement capability for fire-rated joint applications.

It has four hours fire rating under BS EN 1366-4: 2006.

It is almost odour free and is not corrosive towards metals. After drying, it forms a tough elastic seal.