Silicone rubber seals are used in a variety of applications. One important question when it comes to silicone rubber seals is the temperature threshold. This is important to note as different applications have environments that can get really hot. Understanding the exact temperature point where silicone rubber seals will begin to degrade is key. Below you will find the top temperatures for Silicone rubber seals.
Top Temperatures for Silicon Rubber Seals
While there isn’t a definitive answer, there is a known range impacted by certain factors. Silicone rubber can withstand temperatures above 200 degrees Celsius. A key component in what a silicone rubber seal can withstand is time. The amount of time of exposure can change how hot silicon rubber can get before it melts. For example, a seal exposed to intermittent heat lasts longer than a seal exposed to continuous heat. Time can impact the longevity and performance of a silicone rubber seal. Because of that, it is critical to understand the environment before you choose your wholesale specialty seals.
Silicone Rubber Melting Point
Silicone rubber seals can withstand very high temperatures. However, there are noticeable changes in the material when it gets around its melting point. Silicone heated up to 150 degrees Celsius will result in very few changes. This is true even if the silicone seal is exposed to this temperature for long periods.
Silicone exposed to temperatures of 200 degrees Celcius includes changes that you can see. At this temperature, the silicone becomes harder and less flexible. When exposed to 300 degrees Celsius, the material becomes much harder. It is also less stretchy in a very short amount of time. Despite the physical changes, it will not melt. However, temperatures beyond 450 degrees Celsius result in melting.
Thermoplastic Components of Silicone Rubber Seals
Silicone rubber seals are used in a variety of applications. Common applications include cookware and kitchen tools, electronics, medical devices, personal care products, and industrial machinery. They are used in a number of industries and applications because they are flexible and durable. They are also heat resistant, making them a top choice for a number of applications with a hot environment.
Silicone rubber is a thermoset polymer. However, there are additional thermoplastic components that are incorporated into the seals. This depends on the application and the purpose of the silicone rubber seal. There are thousands of available materials that can be used in both industrial and consumer products. The additional materials often serve an integral and functional purpose. Common purposes include reinforcement or bonding.
Common Thermoplastic Materials
Silicone rubber seals are often combined with thermoplastic components. Below are some of the commonly used materials with silicone rubber seals.
- Polypropylene: This is often used in gaskets or seals due to its chemical resistance and low moisture absorption
- Polycarbonate: This material is often used when transparency, heat resistance, and impact resistance is necessary
- Polyethylene: This is often used as a jacket material for cable seals or gaskets as it is resistant to chemicals
Benefits of Silicone Rubber Seals
Silicone rubber seals offer temperature resistance. This is highly important in a number of different applications. However, there are additional benefits to silicone rubber seals beyond just this. Consider the following if you are considering silicone for your application.
Flexible: Silicone rubber seals are flexible and elastic. This is beneficial as they can conform to irregular shapes. This can be helpful in challenging applications and environments.
Weather Resistant: For applications that are impacted by UV rays, silicone rubber seals are both weather and UV resistant. This is ideal for outdoor applications.
Longevity: Trusting that your silicone rubber seal will last is invaluable. They are resistant to degradation and wear and tear, making them a great long-term option.
