OSI Flexible Waterproof & Weatherproof Clear Silicone Window Glazing Sealant Pack of 12

OSI HM270 silicone sealant is a medium modulus. one-part RTV sealant designed for window glazing and sealing. This silicone adhesive cures at room temperature upon exposure to moisture in the air. The RTV silicone provides good tensile strength and excellent adhesion. You can use this construction silicone even without a primer. to most nonporous building materials. OSI HM270 silicone easily withstands temperature extremes from -60 F to 400 F without adverse effects. This waterproof sealant is highly resistant to ultraviolet light and is virtually unaffected by other harsh environmental elements. Easy to apply. silicone sealant comes with a 4” professional nozzle. OSI clear silicone is primarily used for structural or conventional glazing and curtainwall sealing involving glass. plastic. or metal. This sealant forms a permanent watertight and weatherproof bond to materials like concrete. marble. oily woods. limestone. brick. lead surfaces. vinyl. ceramics. aluminum. primed steel. etc. HM-270 silicone adhesive has many applications for general usage. including sealing skylights. solar panels. ventilators. aluminum siding and windows. heating/air conditioning units. ductwork. recreational vehicles. and more. It gives exceptional results in joints subject to continuous water immersion. i.e.. swimming pools. boats. etc. Use this OSI HM270 window silicone that offers superior elasticity and long-life reliability.

• Permanently Flexible
• HM-270 Silicone Construction Sealant is primarily used for structural or conventional type glazing and curtainwall sealing involving glass. plastic or metal. For general usage. HM-270 has many applications including sealing skylights. solar panels. ventilators. aluminum siding and windows. heating/air conditioning units. duct work. recreational vehicles. and other glass. plastic or metal assemblies.
• Not Recommended for
• Easy Extrusion in any weather
• Waterproof & Weatherproof
• Recommended for
• OSI HM-270 Construction Silicone Sealant OSI HM-270 is a high modulus. one-part RTV silicone construction sealant designed for sealing. It cures at room temperature upon exposure to moisture in the air providing good tensile strength and excellent adhesion to most non-porous building materials. HM-270 easily withstands temperature extremes and is highly resistant to UV light. HM-270 offers superior elasticity. long-life reliability and is unaffected by other harsh environmental elements.
• Joints subject to continuous water immersion (i.e. swimming pools. boats. etc)
• 4” Professional Nozzle
• Excellent for Non-porous material
• Applications requiring painting (Paint will not adhere to silicone)
• Applications in totally confined or air-free spaces
• 10 oz
• Clear
• Cleans up with mineral spirits or paint thinner
• Sealing green or vulcanized rubber
• Use with concrete. marble. oily woods. limestone. brick. lead surfaces and vinyl