Fiberlock IAQ 8000 HVAC Sealant is a professional-grade coating engineered to seal, protect, and reinforce HVAC duct systems and insulation materials. This high-build, high-viscosity formula is specifically designed to bridge and strengthen duct liner and duct board insulation, creating a durable and flexible protective barrier that enhances system performance and longevity.

In addition to reinforcing insulation materials, IAQ 8000 can be applied to unlined ductwork prior to component removal, helping to lock down fiberglass and other inanimate particulates and prevent them from becoming airborne. Once cured, the coating dries to a semi-gloss finish that resists moisture and minimizes dirt accumulation, supporting cleaner system operation over time.

The formulation has been rigorously tested to meet industry standards, including ASTM C-411 for hot surface performance and ASTM E84 Class A fire rating. It also complies with NFPA 90A/90B requirements and has demonstrated resistance to fungal growth on the coating surface, ensuring reliable performance in demanding HVAC environments.

IAQ 8000 is suitable for application using brush, roller, or airless spray equipment, including robotic HVAC spray systems. Its high viscosity reduces sagging and dripping, making it effective for vertical and overhead surfaces. The coating typically dries to the touch in 1–2 hours and can be recoated within several hours depending on conditions.

With its combination of durability, flexibility, and proven performance, Fiberlock IAQ 8000 is a dependable solution for sealing and protecting HVAC systems in commercial and industrial settings.

Key Features

• High-build coating designed to seal and reinforce duct liner and insulation
• Helps lock down fiberglass and airborne particulates
• Moisture-resistant, flexible finish reduces dirt buildup
• Meets ASTM C-411, ASTM E84 Class A, and NFPA 90A/90B standards
• High-viscosity formula minimizes sagging and improves application on vertical surfaces
• Resistant to mold growth on the dry coating surface only