Xlong Seal supplies EPDM o-rings, EPDM seals, and EPDM gaskets in standard AS568 sizes and in custom configurations to match your design needs. Custom EPDM o-rings, gaskets, and seals can be tailored to meet your specifications for durometer, color, and industry certifications, including FDA, NSF, 3A, and more (see below). 

Order your AS568 standard O-ring today, or contact us to discuss your custom requirements.

Characteristics of EPDM Rubber O-Rings, Gaskets & Seals

• Resistant to: extreme cold, steam, hot water, sunlight and UV, dilute acids, ketones, alkalis

• Not for use with: solvents, aromatic hydrocarbons

• Temperature range: -60° to 300°F (-51° to 150°C)

• Hardness range: 40 to 90

• Standard hardness: 70

• Standard color: black

EPDM Chemical Compatibility & Characteristics

If EPDM is not compatible with your application, view our chemical compatibility chart to find the right material for your specific needs

• Chemical resistance: Excellent

• Water steam resistance: Excellent

• Weather resistance: Excellent

• Heat resistance: Excellent

• Cold resistance: Good to excellent

• Abrasion resistance: Good to excellent

• Dynamic resistance: Good to excellent

• Set resistance: Good to excellent

• Tear resistance: Good to excellent

• Tensile strength: Good to excellent

• Acid resistance: Good

• Electrical properties: Good

• Impermeability: Fair

• Flame resistance: Poor

• Oil resistance: Poor

• Ozone resistance: Good to Excellent

What is EPDM? General Properties, Compatibility & More

EPDM (ethylene-propylene diene monomer [M-class] rubber) is a type of synthetic rubber that is popular for a broad spectrum of applications. It is one of the most versatile and durable rubbers available, providing outstanding heat, weather, and ozone resistance.

EPDM rubber is suitable for used in extreme cold temperatures (as low as -60°F/-51°C) and outdoor applications, and is resistant to steam (up to 300°F/150°C), hot water, direct sunlight/UV, silicone oils and greases, dilute acids, ketones, alkalis, and automotive break fluids. It also makes an excellent electrical insulator.

Versatile O-Ring, Seal & Gasket Material

EPDM o-rings, gaskets, and seals are commonly used in automotive manufacturing, medical devices, household appliances, water and wastewater systems, and other challenging applications.

In other forms, EPDM rubber is used for everything from garden hose to roofing membranes to speaker components.