EPDM Flange Rubber Gaskets

EPDM has excellent weather resistant characteristics. Used as higher end applications on gasketing and seals for pumps.  EPDM rubber,

commercial grade, is similar to the EPDM rubber roofing, however the commercial grade is less rigid and formable than the roofing rubber.

EPDM rubber material gasket is very resilient to alkaloids and detergents, it does have some mild resistant to petroleum. High pressure

lines and pipe gaskets use EPDM rubber because of its resistance to ultraviolet light and temperature cycling. UV and temperature

extremes cause most rubber material to become cracked brittle.

EPDM rubber gasket sheet is a great weather resistant material.

Advantages

• Completely UV stabilised making it highly resistant to ozone effects

and extreme weather conditions

• Will not deteriorate when submerged in fresh or seawater

• Good mechanical, and wear resistance properties

• Excellent chemical resistance to acids and alkalis

• Good high and low temperature resistance

• Ideal for long term outdoor applications

• Very durable and long time usage

• Good low electrical conductivity

• Good Tensile Strength

• Excellent color stability 

 

Application

• Harsh extremes as marine and underwater applications

• UV, ozone and general weathering applications

• High temperature water environments

• Pipe gasket seals and weather strips

• Outdoor and automotive applications

• Good for use with drinking water

• High pressure lines

• Food industries

• Petrochemicals., etc

 

EPDM rubber Properties

Item	EPDM	Test Method
Color	black., etc	-
Specific gravity	1.1-1.4g/cm3	ASTM D297
Hardness	40-80 Shore A	ASTM D2240
Tensile strength	8 MPa (min)	ASTM D412
Elongation at break	250% (min)	ASTM D412
Size	Normal or custom	-
Tear strength	26N/mm	ASTM D 624
Low temperature resistance	-50°C	ASTM D1329
Temperature range	-50°C to +140°C	ASTM D2000

 

Kinds of Rubber Properties

Common name	Neoprene	EPDM	Nitrile	Silicone	Viton	Kalrez
Chemical Compatibility
Lubricating and Fuel Oils		X		X
Hydraulic Oils		X
Fireproof Hydraulic Fluids					X
Vegetable Oils, Animal Fats
Gasoline (high octane)	X	X		X
Kerosene		X		X
Aromatic Hydrocarbons	X	X	X	X
Aliphatic Hydrocarbons		X		X
Alcohols
Ketones	X		X	X	X
Halogenated Solvents	X	X	X	X
Water (>80°C)
Concentrated Acids	X	X	X	X
Diluted Acids			X	X
Alkalis					X
Properties
Max. Continuous temp °C	105	130	121	204	250	316
Low Temperature °C	–50	–54	–25	–85 to –125	–8 to -30	–8
Tensile Strength, MPa	25	17	27	10	20	15
Hardness Shore A	30–95	40–90	40–95	30–90	70–90	65-95

Key: = Excellent , = Good, = Fair, X = Not Recommended