Silicone Rubber

Silicone Rubber Washers

Here at Advanced Seals & Gaskets, we offer high-quality silicone gaskets in both sponge and rubber form, using high-quality material and state of the art machinery, our in-house conversion service produces a range of silicone rubber washers that are all made to order and produced using samples or drawings to ensure the final product perfectly fits the application – even offering a small sample run if required. Depending on the size and quantity of the washers required, our production team will select from our range of atoms, autos, travelling head, kiss cut pressing machines or for very large or thick washers, we can programme our CNC (oscillating knife) to produce the washers in the most efficient way to keep lead times down.  


What is a Silicone Rubber Washer? 

Silicone (SI) rubber is an excellent material for producing high-performance mechanicals seals and washers which can operate at high and low temperatures. Washers are a flat ring (comprising of an Outer Diameter (OD), Internal Diameter (ID) and the thickness) cut from a sheet or roll of material, which is placed between two surfaces creating a level surface, acting as a spacer or between a nut/bolt to spread the pressure when tightened.  They are also used in a number of vibration dampening, sealing and insulating applications.


Why use Silicone Rubber Washers?

Customers often choose silicone rubber for their gasket needs due to its number of excellent characteristics and features. Silicone rubber gaskets have a broad working temperature range for use in hot and cold environments, with high-temperature versions also available for extreme heat. Silicone rubber gaskets are resistant to UV, weathering, ozone, moisture, many chemicals and fungal growth, they also offer excellent tensile strength, tear-resistance and offer electrical insulating properties.  Silicone rubber is available in a number of grades including food safe and flame retardant grades, as well as a range of colours and hardnesses.


Different Grades 

Advanced Seals & Gaskets Ltd have a network of material manufacturers and suppliers, giving our customers more choice when designing their silicone rubber washers, our most popular grades being:

  • High-Temperature Silicone
  • FDA Approved Silicone
  • Metal Detectable Silicone
  • Fluorosilicone
  • Platinum cured Silicone
  • Conductive Silicone


Benefits of Silicone Rubber Washer

Using silicone rubber washers has a number of benefits, these will vary depending on the grade of silicone used, but include flame retardancy, wide operating temperature range – even higher range when using the High-Temperature grade, resistance to weathering, UV, ozone and chemicals, can be used as electrical insulation and in Food, Beverage and pharmaceutical industries (FDA grades). Silicone rubber is produced in a range of hardnesses, thicknesses and in some grades a range of colours.