|
|
|
|
|
|
|
|
The best fit material for your technical solutions
Color Scheme International Shortform Name
Chemical Name | Properties | | Applications |
Specifications | NR Natural Rubber
Polyisoprene | Excellent physical properties such as extreme resilience, tear strength and wear resistance. High abrasion resistance. NR can be bonded satisfactorily to a wide range of materials and it is used in a variety of applications. Poor resistance to ozone, oxygen and sunlight. Not resistant to oil and organic fluids. | | Tires, vibration isolators, bumpers, conveyor belts, motor suspensions, gaskets, seals, tubing, hoses. It is the material used for most high performance applications unless some specific environmental condition is met. |
| SBR
Styrene Butadiene Rubber | Synthetic copolymer of styrene and butadiene. SBR. Good tear resistance, good abrasion resistance (better than NR), one of the cheaper rubbers.
Not suited for use with oils, fuels, solvents, or hydraulic fluids. | | Widely used in the footwear and tire industries and other extremely demanding applications. Also used as gasket material. | | IIR
Butyl
(Isobutene-Isoprene) | Excellent resistance to acid and alkali, excellent weathering properties and ozone resistance. Very good electrical resistance, low permability to air.
Low elasticity and poor resistance to oil and fuels. | | Used where good heat resistance and weathering properties are required as well as low air permability. Automotive hoses, gaskets, membranes, cable insulators, steam hoses. | | EPDM
Ethylene-Propylene-Diene | Excellent resistance to ozone, aging, weathering, oxygen, sunlight.
Very good resistance to many chemicals. Very good heat and steam resistance.
Poor resistance to oils, fuels or oil based products. | | Can be extruded or molded Gaskets, extrusions, cooling water hoses, washing machine hoses, rubber parts in household appliances - all kinds of industrial rubber parts without exposure to oil. | | CR
Neoprene ® (1) (Chloroprene) | Good physical properties and resilience. Good aging, ozone and weathering resistance. Resistance to chemicals, oils. Flame retardant.
Unsuitable for applications requiring contact with fluids. | | Most general mechanical applications without contact with fluid. | | CSM
Hypalon® (2)
(Chlorsulphonated Polyethylen) | Good ozone, aging, weathering and heat resistance. Resists corrosive chemicals, resistant to oil.
Tear resistance ist fair. | CSM finds uses in applications
when exposure to heavy
weather conditions or hot liquids | | NBR
Nitrile
(Acrylnitrilebutadiene) | Good high temperature resistance. Excellent resistance to mineral and vegetable oils, solvents and fuels.
Good abrasion resistance.
Poor resistance to outdoor
weathering | | Sealings, O-Rings, membranes, conveyor belts, hoses,couplings. NBR ist used instead of natural rubber where added resistance to petroleum oils or gasoline is required. | | HNBR
Therban® (3)
Hydrogenated nitrile rubber | Excellent resistance to oils and fuels, excellent heat, aging, and weathering resistance. Good physical properties, including abrasion resistance , at high temperature.
Excellent resistance to steam and hot water. | | Automotive hoses, seals in vehicle engines, oil exploration and production | | Q/VQM
Silicone
(Polymethylsiloxane) | Wide temperature range - excellent properties for both hot and cold temperature extremes. Excellent resistance to weathering properties, excellent resistance to ozone and oxygen. Very good electrical properties, low level of toxicity, easily colored. Physical properties are fair (abrasion, tensile, tear - not a very strong material), poor resistance to fuels | Medical and pharmaceutical
equipment, food-grade hoses, sealing gaskets for refrigerators, ovens. Electrical applications. Used for applications especially when parts exposed to extreme heat or cold. | | FVQM
Fluorsilicone | Temperature range not as wide as of silicone but better oil resistance and resistant to fuels | | FPM
Viton® (4)
Fluorcarbon | Excellent resistance to a wide range of chemicals, excellent resistance to heat and oil combinations found in engines and compressors. Resilience is very low. Expensive - high cost of Viton ® may limit usage to extreme applications such as aeronautics, space technology and specific applications in automotive industry | | The best material where resistance to hostile chemical and oil environments at normal and high temperatures is required. Tubings, hoses, sealings, molded parts, gaskets. | Footnotes | (1) | Neoprene is a registered trademark of DuPont Dow Elastomers | | (2) | Hypalon is a registered trademark of DuPont Dow Elastomers | | (3) | Therban is a registered trademark of Bayer AG | | (4) | Viton is a registered trademark of DuPont Dow Elastomers |
|
|
|
|
