Ethylene propylene diene diene (EPDM) O-Ring is a type of seal made with EPDM rubber material, which has good weathering, ozone, water and chemical resistance, and therefore is widely used in many fields, especially in applications that require good aging and hydrolysis resistance. Below are some details of EPDM O-Rings:

What is the EPDM O-rings Material Properties ?

• Weathering resistance: EPDM has good resistance to UV rays and climate change, making it suitable for outdoor use.
• Ozone resistance: EPDM has high resistance to ozone and is not easy to crack.
• Water Resistance: EPDM has good resistance to water, steam and polar solvents and is suitable for use in water and hot water systems.
• Chemical resistance: EPDM has good resistance to most polar chemicals such as alcohols, ketones, esters and detergents, but is less resistant to petroleum-based oils and lubricants.
• Insulation: EPDM has good electrical insulation properties.
• Mechanical properties: EPDM has good elasticity and resistance to permanent deformation in compression, but its heat and oil resistance is not as good as that of fluoroelastomer.

Where is the Areas of EPDM O-rings application ?

EPDM O-rings are widely used in construction, automotive, water treatment, heating, ventilation and air-conditioning (HVAC), electrical and electronic industries for sealing water pipes, radiators, air-conditioning systems, door and window seals etc.

How is the EPDM O-rings Manufacturing Process ?

EPDM O-Rings are usually manufactured through a molding or extrusion process. Molding is to put the pre-mixed EPDM material into the mold and form it under high temperature and high pressure; extrusion is to extrude the EPDM material into the shape of O-ring through the extruder and then vulcanize it.

Which Specifications and Standards does EPDM O-rings follow ?

EPDM O-Rings are available in a variety of sizes and hardnesses that can be customized for different applications. Common standards include ISO 3601 (international standard), AS 568 (American standard), etc.

What should we pay attention to ?

• Storage conditions: EPDM materials should be stored in a dry, cool, well-ventilated place, avoiding direct sunlight and high temperatures.
• Use environment: Although EPDM is resistant to water and weathering, it may be affected by certain oils and high temperatures.
• Installation Requirements: EPDM O-Ring should be installed to avoid scratching or twisting to ensure the sealing effect.
• The selection and use of EPDM O-rings need to be determined according to the specific application environment and requirements to ensure the best sealing effect and service life.