Woot offers Nashua – 1087654 ASJ Paper/Tri-Directional Fiberglass/Foil All-Service Insulation Jacketing Tape Duct and Pipe Sealing, 50 yds Length x 72mm Width, White for $7.99 free shipping with Prime. 

Product Description:
Nashua ASJ Insulation Tape is your go-to solution for sealing and insulating ducts and pipes. Whether you’re a professional HVAC technician or a DIY enthusiast, this tape ensures a reliable, long-lasting seal. Best used as a permanent closure system and vapor barrier on ASJ-faced duct and pipe systems. With its high-tack adhesive and tri-directional fiberglass reinforcement, it’s easy to apply and matches well with ASJ insulation. It’s ideal for sealing insulation and making repairs in cooler/refrigeration applications. 

• "Designed for ASJ Insulation: Designed with premium materials making this product highly resistant to tearing while providing a reliable and strong bond for sealing cold and dual temperature duct and pipe systems. "
• Super High Tack and Aggressive Bond: The tape features a acrylic adhesive that offers super high tack, ensuring a strong and secure hold on a variety of surfaces, including sealing inuslation and refridgeration/cooler repairs.
• Versatile Use: Tri-directional fiberglass reinforced for durability to serve as a permanent closure system and vapor barrier on duct and pipe systems. Provides a secure seal without the need for solvents, reducing odor and VOC content.
• The Professionals Choice for ASJ Tape: Engineered for high performance with a cold weather acrylic adhesive this tape is used by HVAC, mechanical, and plumbing professionals for more than 50 years.
• Quality Construction for Easy Application: Tested in accordance with UL 723. Operating temperature: -35 to 260 degree F. Total thickness: 8.8 mils. With an easy-to-remove paper liner.