OSI HM270 Construction Silicone Sealant

OSI HM270 Construction Silicone Sealant
OSI HM270 Construction Silicone Sealant
OSI HM270 Construction Silicone Sealant

OSI HM270 Construction Silicone Sealant

Regular price $10.05
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Introducing OSI HM270 Construction Silicone Sealant, your go-to solution for high-performance sealing in construction projects. Crafted with precision, this one-part RTV silicone sealant is engineered for professionals seeking reliability and durability in their work.

Key Features:

  1. Professional Application: Tailored for professional use, OSI HM270 ensures strong adhesion on various construction surfaces, making it ideal for structural or conventional-type glazing and curtain wall sealing.

  2. Medium Modulus: With a medium modulus formulation, this sealant offers impressive movement capability, accommodating up to +/- 25% of the original joint width. This flexibility ensures resilience against structural shifts and settling.

  3. Tough and Versatile: Built to withstand the toughest conditions, OSI HM270 is permanently flexible, providing superior elasticity and long-lasting reliability. It boasts exceptional resistance to temperature extremes ranging from -60°F to 400°F, making it suitable for diverse environmental conditions. Plus, its robust construction makes it virtually unaffected by UV light, water, and weather.


  • Excellent Adhesion: Formulated for outstanding adhesion to non-porous construction materials, including glass, plastic, aluminum, and primed steel.
  • Quick Curing: Cures at room temperature upon exposure to moisture in the air, offering efficient application and fast results without the need for a primer.
  • Versatile Compatibility: Bonds well to a variety of materials, including ceramics and some plastics, ensuring compatibility with different construction substrates.

For professionals seeking reliability, versatility, and uncompromising performance, OSI HM270 Construction Silicone Sealant delivers unmatched quality and peace of mind for your construction sealing needs.

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