Description
Product Summary
Hardcast AB-151 is a self-adhering fiberglass scrim used to hold and reinforce duct seams before mastic goes on. Press it over the joint and it stays put, bridging the gap so the sealant builds up evenly and does not crack as the duct moves. It is made for use in UL 181 listed sealing applications.
The roll is 3 inches wide by 150 feet long and only 0.005 inch thick, so it disappears under the coating. Apply between 35°F and 110°F. The open weave carries 70 lb per inch of tensile strength, which gives the finished mastic seam real reinforcement.
Key Features
- Self-adhering, no staples or fasteners needed
- Reinforces mastic for a crack-resistant seam
- For use with UL 181 listed sealing systems
- 3 in. x 150 ft roll
Frequently Asked Questions
Do I still need mastic with scrim tape?
Yes. Scrim is a reinforcement layer. It holds the seam in place and strengthens the mastic coat applied over it.
What temperature range can I apply it in?
35°F to 110°F.
Who makes it?
Hardcast, part of Carlisle HVAC Products, made in the USA.
