Delta Duct 32-17 – Anti-Bacterial Acrylic Mastic Sealant

Delta Duct 32-17 is an aqua-based, vapor barrier, fire-resistant acrylic mastic sealant designed for low, medium, and high-pressure or high-velocity HVAC duct systems. Suitable for metal, fiberglass, and flexible air ducts, it is expertly engineered to withstand Middle Eastern climatic conditions. With its high elasticity, excellent adhesion, and superior thermal resistance, this sealant ensures durable air-tight sealing to reduce leakage and enhance HVAC efficiency. :contentReference[oaicite:0]{index=0}

Key Features

• Fire-resistant & vapor barrier: Provides robust protection for pressurized duct systems.
• Anti-bacterial formulation: Helps improve indoor air hygiene and duct cleanliness.
• Highly elastic: Adapts to duct movement and temperature variations without cracking.
• Excellent adhesion: Bonds effectively to metal, aluminum, fiberglass, and flexible duct surfaces.
• Weather-resistant: Specially formulated to perform in extreme hot and humid climates.
• Non-toxic & safe: Free from asbestos, lead, mercury, or mercury compounds. :contentReference[oaicite:1]{index=1}

Applications

• Sealing joints and connections in low to high-pressure HVAC duct systems.
• Vapor barrier protection in metal, aluminum, fiberglass, and flexible duct installations.
• Ideal for HVAC systems in commercial, industrial, and residential buildings.
• Recommended for regions with high humidity and temperature fluctuations.

Application Method

1. Ensure the surface is clean, dry, oil-free, and dust-free. Use a power blower if needed.
2. Apply using power extrusion or a trowel.
3. Spread uniformly over a 2” width at approximately 2 to 2.2 gallons per 100 ft².
4. Total coverage is approximately 40–55 ft² per gallon.
5. Allow to dry for at least 24 hours at temperatures above 25°C before pressure testing.
6. In high humidity (>70%) or cooler temperatures, extended drying time may be required.
7. Recommended total wet film thickness (WFT): 30–35 mils. :contentReference[oaicite:2]{index=2}

Technical Specifications

Why Choose Delta Duct 32-17?

Delta Duct 32-17 provides a professional-grade sealing solution that ensures long-term performance in demanding HVAC environments. With its fire resistance, antibacterial protection, and high flexibility, it significantly improves system efficiency, prevents leaks, and supports better indoor air quality. It is a trusted choice for HVAC contractors, MEP engineers, and facility maintenance teams worldwide.