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Silicone Washer For High Resistance And Flexibility

Silicone washers are spacing components made from different grades of silicone. They are used as sealing washers, damping and cushioning devices, and for other purposes within fastener assemblies.

Silicone washers have become a widely used alternative to natural rubber washers. They offer a series of advantages that are comparable to non-synthetic rubber spacers, as well as some enhancements.

Silicone is made of a unique series of chemical polymers. It provides a tight cushioning grip that’s effective for filling spaces, absorbing shock, insulating temperature, and containing liquids and gasses.

Silicone rubber washers will function as gaskets in a wide range of settings, including plumbing, HVAC, and manufacturing equipment. Silicone is also able to resist extreme temperatures and some potentially caustic chemicals and solvents, which is useful in various industrial processing applications. 

Damping and cushioning properties are some of the primary advantages that come with silicone flat washers. Depending on their thickness, they can be useful for absorbing vibration, thereby contributing to the security and stability of fasteners. This also mitigates the potential that assemblies may lose tension over time.   

Flat washers made from silicone may not provide much rigid support, which limits their capacity as load distribution devices. They can be paired with washers made from metal and other sturdier materials if required.

When used in a gasket capacity or as hose washers, these spacers will have a narrower ratio between their inner and outer diameters, which permits the flow of gases and liquids. They will also be made thinner to allow for a tighter seal between components, joints, and openings. Silicone o-rings rather than washers can be more effective when gaskets are needed for filing a grove between threads or narrower spaces between connections, valves, and spouts. O-rings are also circular components, but unlike washers, they feature a rounded edge instead of a wider distribution surface.     

Silicone rubber washers are less likely to deteriorate, crack, or split when exposed to dryer conditions and temperature extremes. For this and other reasons, they are used as an alternative to washers and gaskets made from natural rubber.

Silicone washers are available in a comprehensive range of sizes, shapes, and thicknesses. They have become a standard part of fastener retailer inventories. If larger quantities or custom sizes are required, it can be more efficient and economical to source silicone washers from a dedicated stamping or washer manufacturer. 

What Is The Melting Point Of Silicone Washers?

Silicone does not have a true melting point and is regarded as one of the most heat-resistant polymers available. It can still combust at extreme temperatures. Silicone washers, therefore, will not melt but they will deform and become brittle when exposed to temperatures in excess of 840 degrees F (450 degrees C). Because of their temperature resistance, silicone washers are frequently utilized in high-temperature processing equipment, such as ovens, boilers, dryers, curing hardware, and more.    

Where Are Silicone Washers Used?

Silicone washers are used in fastener assemblies that require stability, vibration damping, and sealing. They are resistant to corrosion, heat, and moisture. Silicone washers are also food safe. This feature, along with their ability to closely grip a range of materials and tightly seal spaces, makes them a regular addition to food and beverage processing equipment. They have become widely used in plumbing, HVAC, and hydrodynamic settings as a more durable alternative to washers made from natural rubber.      

Are Silicone Washers Chemical Resistant?    

Silicone washers are resistant to a wide range of chemicals, acids, and solvents. Most types of silicones, including those used to make washers, are chemically inert and will not react with most caustic substances.