Hardcast 308591 Duct Insulation Adhesive 1 Gallon

Product Description

The HARDCAST 308591 is a solvent-based duct insulation adhesive formulated for spray booth application in HVAC ductwork insulation work. The adhesive uses a synthetic polymer and resin base to deliver fast initial tack and strong bonding performance. An open time of 15 minutes gives installers a practical working window while the red color aids visual coverage confirmation during application. Temperature resistance ranging from 35 degrees F to 110 degrees F makes it suitable for a wide range of installation environments. Licensed HVAC contractors and sheet metal workers are the primary installers of this product.

This adhesive is designed for attaching duct insulation in both new construction and retrofit HVAC projects. The spray booth application method supports high-volume commercial and residential ductwork fabrication shops where consistent, fast coverage reduces labor time. Its water resistance and mildew resistance properties contribute to long-term performance in duct systems where condensation or humidity may be present. Each pail contains 1 gallon of adhesive.

Key Features

• Instant-tack solvent-based formula reduces application time in spray booth environments
• 15-minute open time provides a practical working window for positioning insulation
• Red color allows visual confirmation of coverage during application
• Water resistant and mildew resistant for long-term duct insulation integrity
• Meets UL (Canada and US) and ASTM C916 standards
• Temperature resistance from 35 degrees F to 110 degrees F

Compatibility

Designed for spray booth application of duct insulation in residential and commercial HVAC ductwork fabrication and installation.

Installation Notes

This product is installed by licensed HVAC technicians and sheet metal workers in accordance with applicable mechanical codes. Use only in spray booth environments with adequate ventilation as required for solvent-based adhesives. Follow all applicable safety data sheet guidelines for personal protective equipment before and during application. Allow the adhesive to reach the specified tack condition before pressing insulation into contact with the duct surface.

Technical Specifications

• Adhesive Type: Synthetic Polymer, Resin, Solvent Based
• Color: Red
• Container Capacity: 1 gallon
• Container Type: Pail
• Application Method: Spray Booth
• Open Time: 15 minutes
• Temperature Resistance: 35 degrees F to 110 degrees F
• Standards: UL (Canada and US), ASTM C916

Standard Information

• Brand: HARDCAST
• Manufacturer Part Number: 308591