When it comes to choosing O-ring seals, the most common materials are elastomeric compounds or rubber. However, some manufacturers are now experimenting with materials and using PTFE considering certain hardware configurations and operating conditions.
Unlike elastomers, PTFE has great electrical properties and offers resistance from corrosion, wider temperature tolerance range and long shelf life.
A2Z Seals offers entirely customized PTFE O-rings and seals that are manufactured with high-quality blend of PTFE to make your seals highly resistible and thus improve your machine’s performance. Other advantages include:
Corrosion resistance
Elements that are incompatible with corrosive compounds, caustic substance or rubber compounds can turn the PTFE a great option as a material for making NOK seals and O-rings. PTFE goes with almost every chemical compound and that’s why it is regarded as one of the most corrosion resistant materials in all industries. What the rubber compound fails to do due to chemical attack, PTFE does because of its corrosion resistance power.
Longevity
Be it a heavy earth moving machinery or a giant truck, seals are one of the most important parts to get the machine moving for years. But if the material used for making the seal is not right, it may falter. For example, this PTFE material present in TCK Seals has shown extended service life in corrosive environment.
Temperature resistance capability
The temperature resistance ability of PTFE ranges from -325 degree F to +500 degree F. This wide range of temperature range is something that most elastomers fail to resist. In fact, some applications in high temperature or cryogenics situations like combustion process or ovens cannot be run on elastomer compound, leaving PTFE the only and best choice.
Even in extreme low temperature rubber materials start hardening to a point in which their elastomeric properties become damaged. On the other hand, PTFE is able to retain its resistance properties with pliability and flexibility at all cryogenic temperatures.
Considering the beneficial properties of PTFE, A2Z Seals offers a wide range of O-rings and sealing kits made of PTFE. Their collection is wholly customizable and is perfect for various heavy earth moving machines like loaders, dumpers, cranes, etc., and certain construction, mining and oilfield machineries.