DOWSIL™ HVAC/R Silicone Sealant, Flexible Multi-Surface Sealant for Refrigerators, Air Conditioners & HVAC Systems, Aluminum, 305 mL

DOWSIL HVAC/R Sealant is a one-part RTV silicone sealant designed for heating, ventilation, air conditioning, and refrigeration applications. It bonds to many common HVAC substrates, including most glass, plastic, metal, painted surfaces, fiberglass, and ceramic. Use it for sealing refrigerator and air conditioner interiors, around electrical boxes and equipment, and for forming watertight seals around outdoor vents, pipe openings, and electrical penetrations when properly applied. The fast-curing sealant cures to 100% silicone rubber and forms a long-lasting, water-resistant seal that remains flexible without becoming brittle, cracking, shrinking, or chalking. It is also resistant to sunlight and weather extremes.

• DESIGNED FOR HVAC/R APPLICATIONS: One-part RTV silicone sealant designed for heating, ventilation, air conditioning, and refrigeration applications, including sealing refrigerator and air conditioner interiors.
• BONDS TO COMMON HVAC SURFACES: Adheres to most glass, plastic, metal, painted surfaces, fiberglass, and ceramic substrates for versatile sealing across HVAC and refrigeration installations.
• FLEXIBLE, LONG-LASTING SEAL: Cures to 100% silicone rubber and forms a long-lasting, water-resistant seal that remains flexible without becoming brittle, cracking, shrinking, or chalking.
• WEATHER-RESISTANT & FAST CURING: Resistant to sunlight and weather extremes with fast-cure, high-strength performance and a tack-free time of 15–20 minutes.
• VERSATILE SEALING APPLICATIONS: Forms watertight seals around outdoor vents, pipe openings, and electrical penetrations when properly applied and can be used around electrical boxes and equipment. Meets Regulation 21 CFR 177.2600 and NSF Standard 51 requirements and is UL Listed.