Don't Just Tape It, Seal It!

Did you know that improper sealing of ductwork results in 24–40% loss in HVAC Systems?

Leakage is Serious.

It affects air quality, can reduce system capacity and the life of an HVAC unit. To reach maximum efficiency, you need a seal that lasts. Hardcast® rolled mastic sealants are designed to seal metal or flexible duct work for the life of the system. These pressure-sensitive, Zero-VOC sealants bond to metal instantly with no mess or cure time−and you can perform pressure tests right away! 

Efficiency Begins With the Right Seal

  • FOIL-GRIP™ 1402: UL Classified, 17 mil tape with modified-butyl duct sealant; superior tack and bonding.
  • FOIL-GRIP™ 1403-181BFX: UL 181B-FX Listed, 17 mil tape with modified-butyl duct sealant; superior cold temperature bonding.
  • FOIL-GRIP™ 1404-181BFX: UL 181B-FX Listed, 17 mil tape with modified-butyl duct sealant; superior tack and bonding.
Hardcast Rolled Sealants

Request A Free Sample

Complete the form to get a complimentary roll of FOIL-GRIP.

  • Bonds instantly to metal duct, duct board and flex duct
  • No cure time — seal and test immediately
  • Zero VOCs — safe for indoor installs
  • Easy to handle, no mess!