Spec Sheet Item Codes: DM5511 Ductmate #5511 Sealant (55 Gallon Drum) DM5511-5 Ductmate #5511 Sealant (5 Gallon Pail) Ductmate 5511 is off white in color . This is the same Sealant Ductmate uses in their 4-bolt Flange systems. Ductmate 5511 M-5 Indefinite shelf life (IF un-opened) Comes in 5-gallon pails and 55-gallon drums.
