Master Flow® Duct Mastic/Sealant Specs

      Master Flow® Duct Mastic/Sealant Docs

      Master Flow® Duct Mastic/Sealant Videos

      Economical icon

      SAVE

      Meets or exceeds most energy codes to help save on energy
      Versatile icon

      VERSATILE

      Use at any duct connection
      Energy Saver icon

      Efficient

      Seals duct systems to help eliminate air leakage and conserve energy
      Product availability is subject to change without notice. Not all products are available from all facilities.
      Size
      WBA10.5 Tube
      Weight12.75 lb. (5.78 kg)
      Carton Quantity12
      WBA50 Tub
      Weight45.6 lb. (20.68 kg)
      Carton Quantity8
      GAF factory-certified roofing companies near you

      Related products for Master Flow® Duct Mastic/Sealant

      Demo shingles product

      This is the related product
      Learn More

      Get automatic Lifetime Protection on your entire GAF roofing system

      When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.
      Residential LRS logos

      Where to buy

      Find a GAF distributor near you.

      Find a contractor

      Find a GAF certified contractor near you.