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Waterproof silicone gaskets are widely used in high-temperature environments due to their excellent properties. The following is a detailed introduction to them:
Characteristics
- High Temperature Resistance: Silicone gaskets can generally withstand high temperatures ranging from 150°C to 300°C, depending on the specific type and formulation. This makes them suitable for use in various high-temperature industrial applications, such as in automotive engines, industrial furnaces, and power plants.
- Excellent Waterproof Performance: They have outstanding waterproof and sealing properties. The molecular structure of silicone rubber is relatively stable, and it can effectively block the intrusion of water and other liquids, ensuring the tightness of the equipment in a wet or high-humidity environment.
- Good Elasticity and Compressibility: Silicone gaskets maintain good elasticity and compressibility even at high temperatures. They can adapt to the deformation and thermal expansion of equipment, and can tightly seal the connection parts to prevent leakage.
- Chemical Resistance: They have certain resistance to many chemicals, such as acids, alkalis, and oils. This enables them to maintain stable performance in harsh chemical environments and prolongs their service life.
Application Fields
- Automotive Industry: They are used in engine gaskets, radiator seals, and exhaust system gaskets. For example, in the engine cylinder head gasket, the waterproof silicone gasket can withstand high temperatures and pressures to ensure the sealing performance of the engine and prevent coolant and oil leakage.
- Electrical and Electronic Industry: In high-temperature electrical equipment such as transformers and circuit breakers, waterproof silicone gaskets are used to seal and protect internal components from moisture and dust, improving the reliability and service life of the equipment.
- Aerospace Industry: Due to their high temperature resistance and excellent sealing performance, silicone gaskets are used in aircraft engines, fuel systems, and hydraulic systems to ensure the safety and stability of the aircraft in flight.
- Household Appliances: In some high-temperature household appliances such as ovens and coffee makers, waterproof silicone gaskets are used to seal doors and joints to prevent heat and steam leakage.
Material and Manufacturing Process
- Materials: The main raw material of waterproof silicone gaskets is silicone rubber, which is usually composed of silicone polymers, fillers, cross-linking agents, and other additives. The selection of different materials and their proportions can adjust the performance of the gasket to meet different application requirements.
- Manufacturing Process: The common manufacturing processes include molding, extrusion, and vulcanization. Molding is to pour the silicone rubber material into the mold and form it under a certain temperature and pressure. Extrusion is to extrude the silicone rubber material through an extruder to form a continuous gasket. Vulcanization is an important process to cross-link the silicone rubber molecules to improve the mechanical properties and heat resistance of the gasket.
The following is a comparison table of the performance of waterproof silicone gaskets and other common gasket materials in high-temperature environments:
| Gasket Material |
High Temperature Resistance |
Waterproof Performance |
Elasticity |
Chemical Resistance |
| Silicone Gasket |
Excellent, 150°C - 300°C |
Excellent |
Good |
Good |
| Rubber Gasket |
General, usually below 120°C |
Good |
Good |
General |
| Cork Gasket |
Poor heat resistance, below 80°C |
General |
General |
Poor |
| Metal Gasket |
Good heat resistance, can withstand high temperatures above 500°C |
Depends on the sealing method |
Poor |
Good for some metals |
In general, waterproof silicone gaskets have significant advantages in high-temperature environments and play an important role in ensuring the sealing and safety of equipment. However, in actual applications, it is necessary to select the appropriate gasket according to specific working conditions and requirements to achieve the best results.
Discover our custom silicone products, including high-temp gaskets designed for various industries. Our products are known for their durability, flexibility, and waterproof properties, providing reliable solutions for your specific needs.
Related Products
Product Description
| product |
Professional Manufacturer Made Silicone Products Custom Rubber Gaskets and Other Rubber Products |
| product material |
Silicone Rubber EPDM NBR NR |
| Brands |
OEM |
| place of origin |
China(Mainland)-Fujian |
| model |
Customized |
| port |
Xiamen |
| Delivery time |
12-15days |
| standard packaging |
cartons |
| payment method |
L/C TT Western Union D/P |
| place of origin |
China(Mainland)-Fujian |
Audited Supplier 
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