Fiberlock IAQ 8500 HVAC Insulation Sealant- A quick drying water-based adhesive coating/encapsulant designed to form a durable, flexible, moisture-resistant protective coating on duct liner insulation material in residential, commercial, or industrial facilites. Fiberlock IAQ 8500 contains an EPA registered fungicide to resist mold growth on the cured film surface. Also available in white (IAQ 8000). For IAQ8000-white (CR686PL), CLICK HERE.Dilution Ratios: n/a RTU pH: n/a Contains: 5 gallons