Soudal Soudaseal MB is a hybrid polymer exterior metal duct sealant with properties surpassing traditional mastic

• Solvent free, high quality, single component exterior metal duct sealant
• Based on an MS Polymer formula
• Does not shrink or get hard in colder temperatures
• UV stable, no yellowing or degradation
• Bonds to damp metal
• Fast skin time
• Gray in color, paintable when dry
• 1 gal pail, 4 pails/case, 64 pails/pallet
• RESCOM Part#FASMB1