Features:

• PERMANENTLY FLEXIBLE: Acrylic latex formula provides excellent elasticity and water resistance.
• INTERIOR / EXTERIOR USE: Can be used either inside or outside the home.
• STRONG ADHESIVE GRIP: Provides a tough bond on metal-to-metal connections.
• NON-FLAMMABLE: Safe to use in enclosed areas. Made in the USA.
• DISCOLORATION RESISTANT: Cured sealant will not discolor over time.

Details:

RDDS 181 Acrylic Duct Sealant is a gray water-based duct sealant used in medium and high-pressure duct systems. It is a special formulation that is non-flammable and provides permanent flexibility, excellent water resistance, and superior sealing strength. Use it to seal metal to metal joints to prevent air leaks in medium and high-pressure systems of spiral and rectangular ductwork for air-conditioning, refrigeration, ventilation, and air distribution. RDDS 181 may also be used to seal joints on runouts of connecting metal flexible tubing. Mold & Mildew Resistant When Cured.