Spec Sheet Item Codes: SH-SF685-2 SF685 2″x100′ Silver Mastic Tape Printed (24 Rolls/Case) SH-SF685-3 SF685 3″x100′ Silver Mastic Tape Printed (24 Rolls/Case) ShurMASTIC® butyl foil tape for indoor or outdoor use to seal Class 1 Flex Duct, sheet metal and duct wrap vapor barriers, and is also approved for subgrade application on PVC-coated duct. SF 685 is a linered, paintable foil mastic on a roll that’s tested in accordance with UL 723 and delivers permanent, airtight and water-resistant seals in temperatures up to 200 F. Indoor/outdoor mastic foil tape Linered Stays supple and forms a permanent bond to substrate Paintable with paint recommended for aluminum Contains no asbestos, CFCs or PCBs
