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Ducting Insights -- Silicone: An Excellent High Temperature Material

Silicone is an important part of the rubber family, mainly due to the incredible qualities it possesses. While most materials wilt under extreme heat, silicone is special because it can stand up to extreme temperatures without seeing damage. It is this quality that makes it stand out among other materials and even other rubber types.

While the limits of silicone’s heat resistance are unlikely to be tested in everyday life, it is vital in some areas. For example, industrial machinery relies on silicone ducting hoses as a key component. Heavy machinery, such as those used in plastic and metalwork, reach extremely high temperatures, and need materials that can stand the heat. Silicone ducting can handle temperatures reaching 550 degrees Fahrenheit without degrading. A specific silicone ducting product will feature a number after its name, which indicates the top temperature it can withstand.

It is important to distinguish the difference between heat resistance and being fire-proof though. Silicone is one of the best materials there is when it comes to low thermal conductivity, which allows it to bear serious heat without damage. However, it could still sustain damage if it comes into contact with an open flame. This is because silicone’s temperature resistance and burn points are different. A flame can cause it to ignite, but heat leaves it unaffected – to the point of the duct’s heat resistance.

Different silicone products feature different aspects, such as insulation or fiberglass supports to increase the strength of the ducting. But it is the silicone itself that is best used to contain heat, making it an excellent high-temperature material.