Momentive SnapSil RTV109 Gray Silicone Adhesive Sealant
One-component, room-temperature vulcanizing (RTV) silicone adhesive sealant offering versatile performance and high-temperature resistance.
Momentive SnapSil RTV109 is a one-component, ready-to-use silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture. This gray sealant cures into a tough, durable silicone rubber, releasing acetic acid vapors as a byproduct. Application is straightforward; simply ensure surfaces are clean and dry before applying the sealant directly from the 10.1 oz cartridge. The cure time is dependent on temperature and humidity levels.
The cured sealant demonstrates excellent adhesion properties and maintains flexibility even at low temperatures (-60 C/-75 F), while also withstanding high temperatures (continuous 204 C/400 F, intermittent 260 C/500 F). It offers a strong and flexible bond with a tensile strength of 28 kg/cm (400 lb/in ), elongation of 450%, and a hardness of 30 Shore A. In addition to its mechanical properties, SnapSil RTV109 provides excellent electrical insulation.
Key Features
- One-component, ready-to-use formulation
- Room temperature cure with atmospheric moisture
- Excellent high and low-temperature performance (-60 C to 260 C)
- High tensile strength (28 kg/cm , 400 lb/in ) and elongation (450%)
- Excellent electrical insulation properties (20 kV/mm dielectric strength, 3 10 ohm-cm volume resistivity)
- 1.0% linear shrinkage
- 10.1 oz cartridge packaging
Typical Applications
- General purpose bonding and sealing
- Applications requiring high-temperature resistance
- Applications requiring excellent electrical insulation