When joining, sealing or patching Class 1 Flex Duct, it’s imperative to not only meet UL requirements, but also achieve total system closure. Choosing the right tape – one that’s UL Listed and designed to conform to flexible air ductwork – is integral to the success of HVAC jobs.
DC 181 from Shurtape® is a film tape designed for sealing Class 1 Flex Duct – and is UL 181B-FX Listed, helping to make every job code compliant. Today, building codes require the use of a tape that is UL 181B-FX Listed for sealing flex duct connections. Code compliance against UL 181B-FX requirements ensures the tape has the proper adhesion and extended-life shear strength to stay in place effectively for long periods of time. If the right tape isn’t used, the HVAC system will fail the building inspection.
DC 181 is designed to prevent air loss when connecting, joining, sealing and patching flexible air ductwork:
- Excellent conformability to uneven surfaces
- Easy to unwind
- Hand-tearable
- High tack for quick stick
- UL Listing is clearly printed on the tape for easy identification to pass inspection
- Can be applied in temperatures ranging from -10 F to 210 F
“The key here is air leakage,” said Glenn Walter, product manager for building and construction tapes. “DC 181 allows you to seal connections and seams so that air doesn’t leak out of the system and ruin the system’s efficiency. Why install a high-efficiency heat pump if you’re going to lose all that energy through leaks in the ductwork?”
DC 181 is tested in accordance with UL 723 and is also a Shurtape Green Point Contributor Product – meaning it contributes to LEED®* certification points when combined with other eligible building materials.