O-ring coatings are specifically designed to improve the performance and service life of O-rings and to make an O-ring coating more suitable for specific environments and applications. The coating is simply a protective layer applied over the O-ring. It is mainly used in sealing applications and to isolate and prevent liquids or gases from escaping from mechanical systems.
Benefits include
- Reduces wear
- Resistant to chemicals
- Resistant to extreme temperatures
- Acts as a lubricant to reduce friction
- Protects against corrosion
- Adsorbs vibration and noise
- Electrical insulation
- Chemical resistance
- Anti-adhesion
Coating material
The material of the coating depends on the material of the O-ring; there is a different coating for almost every type of material. These different coatings help to improve material properties and increase service life. Common coatings include; silicone grease, PTFE, Teflon, Molykote and talcum. PTFE is known for its excellent chemical resistance and low coefficient of friction. Silicone coatings are highly resistant to very high temperatures. Flexible coatings can also be applied; this is a substrate that moves, bends and stretches with you.
Preventing ageing
NBR products coated with PTFE are resistant to the effects of ozone and UV radiation, making them ideal for outdoor and electrical applications.
Colour
A range of coatings can be supplied in a choice of RAL colours. This makes it easier to identify different O-rings and also makes the O-rings more visually appealing.
For more information, please visit our website. Do you have any questions about any of our products or are you unsure? Feel free to contact us, we are here for you on weekdays between 08:30 and 17:00.
View our O-rings here.