Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of encapsulated o ring in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made encapsulated o ring from our factory.
Material Properties
Good airtightness
Encapsulated O ring combines the elasticity of rubber with the excellent performance of coating. Even if the outer layer is slightly worn, the rubber core can still provide reliable sealing.
Extremely low friction coefficient
PTFE and other outer coatings have smooth surfaces and low friction coefficients (0.05-0.2), which are suitable for dynamic sealing (such as reciprocating motion and rotary sealing).
Excellent chemical resistance
The outer coating material (such as PTFE, PFA) can resist corrosive media such as strong acids, strong alkalis, organic solvents, etc., and is suitable for harsh environments such as chemical and pharmaceutical industries.
Anti-stick and cleanliness
The surface of O Ring does not adhere to the medium and is suitable for industries with high cleanliness requirements such as food, semiconductors, and medical treatment.
Wide temperature adaptability
The outer material of the O-ring (such as PFA) can withstand -200°C to +260°C, which is more adaptable to extreme temperature environments than ordinary rubber.
Excellent wear resistance
The coating protects the rubber core from wear and tear, extending the service life of the seal.
Customized Services
Customizable Base Rubber
Needs to be selected according to media compatibility (such as NBR, FKM, EPDM, etc.).
Customizable Common Coating Types
PTFE polytetrafluoroethylene: ultra-low friction, chemical resistance, anti-stick, but average wear resistance.
PFA perfluoroalkoxy resin: better chemical resistance than PTFE, higher mechanical strength, higher cost.
FEP fluorinated ethylene propylene copolymer: high transparency, chemical resistance close to PTFE, good flexibility.
ETFE ethylene tetrafluoroethylene copolymer: impact resistance, radiation resistance, suitable for extreme environments.
FAQ
Q: How long is your delivery time?
A: The general delivery time is 10-25 days after receiving your order confirmation. Anther, if we have the goods in stock, it will only take 3-8 days.
Q: Do you have the test and audit service?
A: Yes, we can assist to get the designated test report for product and the designated factory audit report.
Q: Can you arrange shipment for customer?
A: Yes, very good experience in shipping, we work with the most reliable shipping companies in the world, such as OOCL, Mearsk, MSC, 4 major international express delivery and etc.
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