RTV silicone rubber, full name Room Temperature Vulcanizing Silicone Rubber, is a silicone material that can react chemically at room temperature and cure into an elastomer. Its characteristics are extensive and excellent, specifically manifested in the following aspects:
1. Curing and elastic properties
Room temperature curing: RTV silicone rubber can be cured at room temperature without heating, which makes it more convenient and efficient in application.
Elastic colloid: The cured RTV silicone rubber forms an elastic colloid with excellent shock resistance, which can play a protective role in the event of shock and is not prone to new cracks.
2. Weather resistance and temperature resistance
Strong weather resistance: RTV silicone rubber can maintain its physical and chemical properties in a wide temperature range (-60℃ to +250℃, and some products can even be used at higher temperatures), and is not prone to aging, cracking or deformation.
High and low temperature resistance: Low phenyl silicone rubber is known for its excellent low temperature resistance (brittle temperature can reach -120℃) and is suitable for low temperature environments; while medium phenyl and high phenyl silicone rubbers are suitable for more severe working environments by improving the material's ablation resistance and radiation resistance.
3. Electrical insulation and corrosion resistance
Excellent electrical insulation performance: RTV silicone has high volume resistivity and low dielectric loss, which makes it widely used in electronics, aerospace and other fields for protecting circuits and isolating electromagnetic interference.
Corrosion resistance: It has good resistance to most chemical media (such as acids, alkalis, salts, etc.), is not easily corroded or dissolved, and ensures its long-term stability in complex and changeable chemical environments.
4. Bonding and sealing
High bonding strength: RTV silicone has good bonding to most metal and non-metal materials, with high bonding strength and no corrosion.
Excellent sealing performance: The cured RTV silicone fits tightly to its contact surface, forming an excellent sealing effect, which is conducive to reducing thermal resistance and improving heat conduction efficiency.
5. Environmental protection and safety
Environmentally friendly and non-toxic: RTV silicone will not produce harmful by-products during the curing process, and will not decompose and release harmful gases or substances that affect human health even if it encounters high temperatures after curing.
Safe use: It has good solvent resistance, waterproof performance, and safety certifications such as UL certification, ensuring its safe use in various application scenarios.
6. Other characteristics
Good extrusion: RTV silicone has good fluidity and extrusion volume when passing through a nozzle or nozzle of a certain caliber under specific pressure and conditions, which helps to achieve precise glue application control and uniform coating distribution.
Long storage period: During storage, as long as no air or moisture enters, its performance is the same as before, and the bonding strength is very strong.