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Silicone O-rings are excellent sealing components that are incredibly effective across various industrial applications. They are made from silicone rubber, which is a synthetic elastomer with excellent temperature resistance, flexibility, durability, and insulating properties.

Common Names

Silicone, VMQ, PVMQ

Trade Names

Silastic®, Elastosil®, Momentive®, Thermoflex®, NuSil®

 

Description

Silicone O-Ring Properties

  • It is highly resistant to temperature, UV radiation, and weathering.
  • It has good chemical compatibility.
  • It has a low compression set.
  • It has good electrical insulation properties.
  • It is non-toxic.
  • It is efficient even at low temperatures.

Silicone O-Ring Features

  • Excellent temperature resistance, withstanding both high and low temperature applications.
  • Resistant to a wide range of chemicals, including acids, alkalis, solvents, oils, and fuels.
  • Low compression set.
  • Excellent flexibility and elasticity.
  • Good electrical insulator.
  • Resistant to aging and weathering.
  • Non-toxic with no odor.
  • Can be compounded to meet the requirements set by the FDA, USP Class VI, USDA, 3-A, and Canada AG.
  • Excellent resistance to oxygen, ozone, sunlight, vegetable oil, and grease.
  • Resistant to fungal and biological attack.

Silicone O-Ring Limitations

  • Not suitable for dynamic applications.
  • Low tear strength and poor abrasion resistance.
  • High gas permeability.
  • Not compatible with concentrated acids, concentrated bases, concentrated solvents, petroleum-based substances, diluted sodium hydroxide, aromatic mineral oil, aromatic hydrocarbons, aromatic mineral oil, and superheated water or steam >250°F.

Silicone O-Ring Service Temperature*

-50°C (-58°F) to 232°C (450°F)

(*Depends on the compound and the application.)

Usage

Silicone O-rings are used across industries and applications due to their unique properties, such as in:

  • Aerospace and Aviation
  • Automotive
  • Pharmaceutical
  • Food and Beverage
  • Electronics
  • Renewable Energy Applications
  • Plumbing Applications

Silicone O-Rings by Kesaria

Kesaria is one of India’s largest suppliers and manufacturers of rubber and PTFE parts. Our Silicone O-rings are meticulously designed to cater to your unique needs. They are available in  customized sizes, colors, durometer hardness, thickness, and diameter. You can trust us to give you the best results!