This Lennox 58P95 (Boss 33316) polyurethane expanding foam is designed for professional HVAC, construction, and repair applications. It quickly fills gaps, cracks, and penetrations to improve insulation, reduce air leaks, and provide a secure seal around line sets, ducts, and wall openings. The 12-ounce aerosol can delivers controlled, easy application for residential and commercial jobs.

 

Key Features:

• One-component polyurethane expanding foam for sealing gaps and voids
• Helps improve energy efficiency by reducing drafts and air infiltration
• Ideal for HVAC penetrations, plumbing openings, and construction gaps
• Bonds to wood, metal, drywall, masonry, and most common building materials
• Fast-curing formula that expands to fill irregular spaces
• 12-ounce aerosol can for convenient and precise application

 

Specifications:

• Product Type: Expanding Polyurethane Foam
• Brand: Boss
• Model: 33316 (Lennox 58P95)
• Container Size: 12 oz aerosol
• Application: Sealing, insulating, filling openings and penetrations
• Compatibility: Wood, metal, concrete, gypsum, and most building substrates
• Cure Type: Moisture-cured expanding foam