Silicone rubber gaskets are available in a wide range of shapes and sizes, and have many different applications. These gaskets are widely used in all types of industry and can include the engineering industry, the aircraft industry, the construction industry, and the catering industry to name just a few. They are very commonly used between two or more surfaces, where it is necessary to contain the leaks of liquid or air. The surfaces come together and the silicone rubber gasket is compressed, producing an excellent seal. In the case of silicone o-rings, where some movement may be necessary, lubrication is most often achieved by sealing the fluid.
Due to the properties of silicone, these Ring Joint Gaskets can take many forms such as;
o Miter cut letterbox shape
o Horseshoe shape
o ring shape
Silicone has very versatile properties due to its ability to withstand extreme temperatures and its moisture repellent qualities. It is commonly used in adhesives, sealants, medical applications, cookware, insulators, and lubricants. Silicones are polymers that are made of chemical elements and include oxygen, hydrogen, and silicon.

Silicone has several useful properties and some of them may include;
o Low toxicity
o Thermal Stability
o Water repellent
o Good resistance to sunlight and oxygen, etc.
o Non-stick
o Good electrical insulation
Silicone gaskets are mechanical seals that are used to prevent leakage between two surfaces. Gaskets generally require some form of compression and therefore the gasket requires some degree of elasticity or some form of deformation. Silicone rubber gaskets are ideal for such applications. An O-ring, for example, is an extremely versatile type of silicone gasket, and is commonly used in all types of plumbing and piping applications, and will even allow a small amount of movement between the two surfaces while sealing them efficiently.
Different types of silicone gaskets can be included;
o Silicone gaskets
o Solid silicone gaskets (commonly used in metal closures)
o Silicone sponge gaskets
o Silicone foam gaskets (closely related to sponge gaskets)
o Injection molded silicone gaskets
The open cell type foam gaskets can be used for dust gaskets or shock and vibration gaskets. The closed cell is mainly used for environmental seals.