Description
The Red Devil F-Seal Gray Tub 1 Gallon - 00841DX is a high-performance sealant designed for creating durable, airtight seals in HVAC systems and ductwork. Its flexible, gray formula ensures a secure bond that resists cracking and shrinking, even in extreme temperatures. Ideal for professional use, this easy-to-apply sealant delivers long-lasting protection and reliability.
- Water based
- Sealant
- 1 Gallon
- Indoor/Outdoor Use
- Fast Dry Time
- Exceeds all SMACNA Pressure and Sealing Classes
- UL Listed, 181 AJ M & 181 BJ M
- Meets Requirements of NFPA 90A, 90B and 225, UL723/ASTM E84
- Seals High, Medium and Low Pressure HVAC Duct Systems
- Contributes to LEED EQ Credit 4.1
- UV Resistant, Paintable after Full Cure
Specifications
Size: 1 Gallon
Color: Gray

