10.5 Oz. Water-Based Duct Sealant

Specifications for DiversiTech 800-008 Pro-Air Duct Sealant

The DiversiTech 800-008 Pro-Air Duct Sealant is a high-performance, water-soluble, pressure-sensitive sealant formulated for sealing metal and fiberglass air duct systems. Supplied in a 10.5 oz tube, this white paste sealant provides a strong, flexible, and airtight bond that prevents air leakage, improves system efficiency, and meets stringent VOC standards. Its advanced formula is designed for easy application, quick cleanup, and long-term adhesion in residential, commercial, and industrial HVAC systems. Ideal for use with sheet metal joints, seams, and fittings, it ensures a professional-grade seal that withstands normal vibration and temperature variations.

• Model: 800-008
• Brand: DiversiTech
• Product Line: Pro-Air
• Product Type: Duct Sealant (Tube)
• Container Type: 10.5 oz Tube
• Base Type: Water-soluble
• Physical Form: Paste
• Color: White
• Odor: Faint odor of ammonia
• Composition: Limestone, Alkanes (C14–17, chloro), 2-Propenoic Acid (2-Methyl-), Polymer with Ethyl 2-Propenoate, Quartz, Methanol, Ammonium Hydroxide, Titanium Dioxide, Bronopol (INN)
• pH Range: 8 to 9.5
• VOC Content: < 37%
• Application: Designed for sealing air duct joints, seams, and connections in HVAC systems
• Performance: Provides durable, flexible, and airtight seals to prevent air leakage
• Temperature Resistance: Maintains adhesion under normal HVAC system operating temperatures
• Drying Time: Fast-drying, forming a tough, elastic seal
• Coverage: Suitable for use on metal, fiberglass, and flexible duct materials
• Consistency: Smooth, non-sag paste for easy application
• Cleanup: Cleans easily with water before curing
• Cure Type: Air-dry, forming a permanent flexible seal
• Solvent Type: Water-based formulation for safe, low-odor application
• Adhesion: Strong bond to galvanized metal, aluminum, and duct board
• Durability: Crack-resistant and long-lasting under vibration and air pressure
• Use: Ideal for residential, commercial, and light industrial HVAC applications
• Safety: Low-VOC, non-flammable, and compliant with environmental safety standards
• Environmental Features: Water-based formulation reduces harmful emissions
• Compliance: Meets SMACNA and LEED requirements for duct sealing materials
• Packaging: Supplied in ready-to-use 10.5 oz caulking tubes
• Maintenance: Long service life with minimal maintenance required
• Storage: Store in a cool, dry location; protect from freezing
• Warranty: Covered by DiversiTech’s limited product warranty
• Manufacturer: DiversiTech Corporation
• Country of Origin: Made in the USA