OSI HM270 Construction Silicone Sealant

OSI HM270 Construction Silicone Sealant is a high-performance, medium modulus RTV silicone sealant engineered for glazing and sealing in demanding environments. This silicone sealant excels in extreme temperatures ranging from -76°F to 350°F, maintaining flexibility and durability under harsh conditions. Ideal for non-porous surfaces, it is perfect for sealing skylights, solar panels, duct work, aluminum siding, and more.

Key Features:

• Temperature Resilience: Withstands temperatures from -76°F to 350°F.
• Flexibility: Permanently flexible with +/- 25% joint movement capability.
• Water-Resistant: Provides a watertight and weatherproof seal.
• Easy Application: Smooth extrusion in all weather conditions.
• Durable Bond: Adheres well to glass, aluminum, ceramics, primed steel, and certain plastics.

Benefits:

• Versatile Use: Suitable for a variety of tough applications including window sealant and RTV silicone needs.
• Long-Lasting Performance: Resistant to UV light and harsh environmental elements, ensuring long-term reliability.
• No Primer Needed: Excellent adhesion typically without the need for a primer.

Recommended Applications:

• Glazing and Sealing: Perfect for structural and conventional type glazing, curtain wall sealing, and more.
• Tough Environments: Ideal for silicone adhesive applications such as sealing skylights, solar panels, duct work, recreational vehicles, and aluminum siding.

Limitations:

• Not for: Use with concrete, marble, brass, copper, oily woods, limestone, brick, lead surfaces, polyethylene, polypropylene, PTFE, continuous water immersion, horizontal joints requiring abrasion resistance, confined spaces, green or vulcanized rubber, potable water systems, reflective coatings on mirrors, and applications needing paint.

Coverage:

• 10 fl. oz. (295 mL) Cartridge:
  • 1/4” (6 mm) Bead: Covers approximately 31 ft. (9.5 m)
  • 3/8” (9.5 mm) Bead: Covers approximately 14 ft. (4.2 m)

Experience the superior sealing power of OSI HM270 Construction Silicone Sealant. Order today for a durable, flexible, and reliable solution to your sealing needs!