HARDCAST 321 Duct-Seal Duct Sealant (One Gallon) Replacement MPN

Product Description

The HARDCAST Duct-Seal 321 is a water-based duct sealant designed for industrial and commercial use. This product is effective for sealing metal ducts, fiberglass duct boards, and flex ducts. It contains fiber reinforcement and UV inhibitors to enhance performance. The sealant is non-toxic and solvent-free, making it safe for indoor and outdoor applications.

• Water-based, easy to apply.
• Complies with UL 181B-M, LEED, and SCAQMD Rule 1168 standards.
• Available in one gallon size.

Product Highlights

This duct sealant is suitable for various environments, including residential, commercial, and industrial settings.

Product Information

Standard Information

• Brand: HARDCAST
• Product Type: Duct Sealant

Technical Specifications

• MPN: 321
• Application: Commercial, Industrial, Residential
• Size: One gallon
• Color: Grey
• Material: Latex
• Maximum Temperature: 200 degrees F
• Temperature Range: -20 to 200 degrees F
• UL Listed: Yes
• NSF Certified: Yes
• CARB OTC LEED Compliant: Yes
• SCAQMD Compliant: Yes
• ASTM Specifications: ASTM C731, ASTM C732, ASTM D1084 Method B, ASTM D1475, ASTM D1640, ASTM D2202, ASTM D2240, ASTM D2697, ASTM D412, ASTM D5590, ASTM E84
• Approval/Listed: UL181B