SILICONE (VMQ)
Silicone is a semi-organic elastomer with outstanding resistance to extremes of temperature with corresponding resistance to compression set and retention of flexibility. Silicone elastomers also have excellent weathering, ozone and aging properties.
Silicone rubbers have poor mechanical properties and abrasion resistance and are therefore mainly used for static sealing applications and are not recommended for dynamic applications. Silicones are highly permeable to gases, and are generally not recommended for exposure to ketones, concentrated acids, or steam.
Temperature Range (dry heat)
Standard Compound: -50°C to +220°C
Primary Uses
O-rings, rubber seals and custom molded rubber components for:
» Seals (static) for extreme temperature applications
» Food applications
» Medical devices
» FDA applications
Application Advantages
» Excellent extreme temperature properties
» Excellent compression set resistance and good resilience
» Moderate solvent resistance
» Highly resistance to oxidation and ozone attack
» Very clean, low odor and taste
Application Disadvantages
» Typically not good for dynamic seals due to friction properties and poor abrasion resistance
» Not recommended for most concentrated solvents, oils, concentrated acids and dilute sodium hydroxide
