Fiberlock IAQ 8000 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 IAQ8000 contains an EPA registered fungicide to resist mold growth on the cured film surface. Also available in black (IAQ 8500). For IAQ8500-black (CR688PL), CLICK HERE.Dilution Ratios: n/a RTU pH: n/a Contains: 5 gallons