Properties of EPDM Rubber

• EPDM rubber has excellent resistance to atmospheric aging meaning it is heat, ozone and weather resistant
• It has a good resistance to most water-based chemicals.
• EPDM rubber also has a great resistance to abrasives and tearing.
• It has stable, saturated polymer backbone structure.
• It has good electrical resistivity.
• EPDM rubber is also resistant to polar solvents like water, acids, alkalies, phosphate esters.
• It has excellent flexibility at high and low temperatures.
• EPDM rubber can be finished to an extremely smooth surface
• It has resistance to solvents and high temperatures too.

Properties of Synthetic Rubber

There are different varieties of synthetic rubber, each having their unique properties. Some of the common properties of synthetic rubber are as follows:

• Better abrasion resistance
• Good Elasticity
• Better heat and aging resistance
• Electrical insulation material
• Flexible at low temperatures
• Flame retardant
• Resistant to grease& oil etc.

Properties of Natural Rubber

Natural rubber has certain unique properties such as follows:

• Natural rubber combines high strength (tensile and tear) with outstanding resistance to fatigue.
• It has excellent green strength and tack which means that it has the ability to stick to itself and to other materials
• which makes it easier to fabricate.
• It has moderate resistance to environmental damage by heat, light and ozone which is one of its drawback.
• The natural rubber has excellent adhesion to brass-plated steel cord, which is ideal in rubber tyres.
• It has low hysteresis which leads to low heat generation, and this in turn maintains new tyre service integrity and extends retreadability.
• The natural rubber has low rolling resistance with enhanced fuel economy.
• It has high resistance to cutting, chipping and tearing.

Nitrile Synthetic Rubber Properties

Nitrile rubber has high resilience and high wear resistance. However, it has only moderate strength along with limited weathering resistance and poor aromatic oil resistance. Nitrile rubber can generally be used down to about -30C but special grades of NBR can work at lower temperatures too. Following is the list of Nitrile Rubber Properties.

• Nitrile Rubber belongs to the family of unsaturated copolymers of acrylonitrile and butadiene.
• The physical and chemical properties of nitrile rubber vary depending on the polymer’s composition of acrylonitrile.
• Different grades are available for this rubber. The higher the acrylonitrile content within the polymer, the higher the oil resistance.
• It is generally resistant to fuel and other chemicals.
• It can withstand a range of temperatures.
• It has inferior strength and flexibility, compared to natural rubber.
• Nitrile rubber is also resistant to aliphatic hydrocarbons.
• It is less resistant to ozone, aromatic hydrocarbons, ketones, esters and aldehydes.
• It has high resilience and high wear resistance but only moderate strength.
• It has limited weathering resistance.
• It can generally be used down to about -30 degree celcius , but special grades can also operate at lower temperatures.

Neoprene Rubber Properties

• Polychloroprene rubber has good mechanical strength.
• It is high ozone and weather resistance.
• Neoprene also has good aging resistance.
• It has low flammability as one of its properties.
• It has good chemicals resistance.
• Polychloroprene rubber is moderately oil and fuel resistant.
• Neoprene rubber properties include its capability of adhesion to many substrates.
• Polychloroprene or neoprene rubber can be vulcanized by using various accelerator systems over a varied temperature range.
It is less resistant than natural rubber to low temperature stiffening. This helps in giving improved low temperature resistance.
• Polychloroprene rubber can also be used easily with mineral oils, greases, dilute acids and alkalis.