Premium "bottom board" duct tape designed to meet demanding applications. For temporary patching of utility access holes, taping of ductwork, and a variety of heavy-duty applications requiring high strength and adhesion. 17 mil. Tested in accordance with UL-723.

• Adheres well to a wide variety of surfaces under a wide range of temperature conditions

• Heavy duty cloth duct tape for demanding applications

• Tested in accordance with UL 723

• Use for temporary patching of utility access holes, taping of ductwork and other applications required