UL 181

To earn the UL Listing, our line of UL 181 tapes have been rigorously tested to prove that they are up for the job. They provide a high-performance permanent bond, seaming and sealing ductwork, duct board, and Class 1 Flexible Duct. Printed for identification, our UL tapes are UL 181A-P/B-FX, UL 181B-FX, or UL 181A-H Listed and will stand up to the industry’s most demanding applications.