Five different duct tapes are offered by this Texas company, all with UL code classifications.

Five different duct tapes are offered by this Texas company, all with Underwriters Laboratories' code classifications. HDT-519 is used for plumbing cap-offs and vinyl-pad seaming. It meets UL 723 requirements and is available in both black and silver. HDT-520BPT and HDT-520MPT are black- and silver-cloth premium-grade duct tape, designed for use on Class 1 flexible duct. They are both UL 181B-FX listed for uses that require high tensile strength and strong adhesion. HDT-442 is an all-weather duct tape recommended for HVAC and refrigeration system applications. It meets UL 723 requirements. HDT-443 is used for sealing and patching foil, scrim or kraft boards and blankets, and meets UL 723 requirements.

Carlisle Hardcast, 900 Hensley Lane, Wylie, TX 75098; (800) 527-7092.

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