If you’re thinking about buying a silicone gasket, you might be wondering what benefits they offer. Silicone gaskets are characterized by a silicone construction. They are made of an elastomeric, rubber-like material with alternating silicon and oxygen atoms. Here are six key benefits of silicone gaskets.
#1) Superior Sealing
For superior sealing, you can’t go wrong with a silicone gasket. They are commonly used to seal mating surfaces. Even when exposed to pressure or moisture, they won’t leak. Silicone gaskets are elastomeric, so they will return to their original shape after deformation. A silicone gasket may expand under pressure, thereby creating a tight seal. After the pressure has been released, it will return to its original shape.
#2) Resistant to Extreme Temperatures
Silicone gaskets are resistant to both cold and heat. Some of them can handle temperatures as low as minus 100 degrees Fahrenheit and as high as 500 degrees Fahrenheit. This makes them a popular choice for engines, exhaust systems and even commercial ovens. While extreme temperatures can cause other gaskets to fail, silicone gaskets can withstand cold and heat.
#3) Resistant to Chemicals
In addition to extreme temperatures, silicone gaskets are resistant to chemicals. They can withstand oils, acids, solvents and other harsh chemicals. Exposure to chemicals such as these can degrade other gaskets and cause them to fail. Silicone, however, is a nonreactive material, meaning most chemicals lack the energy needed to break silicone’s molecular structure.
#4) Nontoxic
Silicone gaskets are also nontoxic. They won’t leach chemicals or otherwise contaminate the products to which they are exposed. As a result, silicone gaskets are a popular choice for the food and beverage industry. There’s even Food and Drug Administration (FDA)-approved silicone.
#5) Durability
It shouldn’t come as a surprise to learn that silicone gaskets are durable. They can handle extreme temperatures, moisture and a wide range of chemicals — all while providing a tight seal. Furthermore, silicone gaskets don’t dry out or crack like many other types of gaskets. Even when exposed to sunlight or heat, they will maintain their sealing integrity without becoming brittle.
#6) Electrical Insulation
Silicone gaskets offer excellent electrical insulation. This makes them highly useful for electrical systems. With their insulative properties, silicone gaskets can prevent arcing while protecting electrical devices from overcurrent, short circuits and other electrical faults.