Carlisle Indoor/Outdoor Water Based Mastic Duct Sealant, 1 gal, White

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This high-performance, water-based duct sealant is designed for reliable indoor and outdoor use, providing a strong, flexible seal across a wide range of HVAC applications. Ideal f or professionals, it delivers long-lasting adhesion and durability on metal ductwork, fiberglass duct board, and flexible duct systems. Key Features & Benefits: Versatile Application: Compatible with metal ducts, glass fiber duct board, flex duct, duct fabric, and flexible tubing runouts Durable Performance: Withstands temperatures from -20°F to 200°F for year-round reliability Strong Coverage: Covers approximately 214–320 linear feet per gallon (at 20–30 mil thickness, 3" width) Flexible & Long-Lasting: Mastic formulation with >20 Shore A hardness for a secure, lasting seal Low VOC Formula: 45 g/L for reduced environmental impact Indoor/Outdoor Use: Performs in a variety of job site conditions Product Specifications: Size: 1 Gallon Container Type: Pail Color: White Form: Mastic Composition: Ethylene Glycol, Methanol Odor: Typical latex with slight ammonia scent Specific Gravity: 1.39 pH: 8–9 Vapor Pressure: 17 mm Hg at 20°C Boiling Point: 212°F Shelf Life: 1 year (unopened) Show more