Professional Material Supplier For Rubber Industry
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AEM rubbers(Ethylene acrylic elastomers), are synthetic rubbers composed of both ethylene and acrylic monomers. The ethylene imparts good low temperature properties, while the acrylic portion improves the oil resistance. The combination of a saturated backbone with polar side groups also provides good resistance to heat, ozone (weathering), and many chemicals.
An important manufacturer and supplier of AEM rubbers is DuPont.
Our AEM Compound is made from Dupont Vamac.
AEM rubbers(Ethylene acrylic elastomers), are synthetic rubbers composed of both ethylene and acrylic monomers. The ethylene imparts good low temperature properties, while the acrylic portion improves the oil resistance. The combination of a saturated backbone with polar side groups also provides good resistance to heat, ozone (weathering), and many chemicals.
An important manufacturer and supplier of AEM rubbers is DuPont.
Our AEM Compound is made from Dupont Vamac.
Properties:
AEM’s resistance to ozone and weathering is superior to nitrile rubber (NBR) and its cold temperature performance is better than that of ACMs. Besides excellent heat and ozone resistance, AEMs have outstanding vibration dampening and good dynamic and abrasion properties over a wide temperature range.
Properties of AEM rubber at a glance:
Excellent weather and ozone resistance
Very good heat resistance
Resistant to most oils and lubricants (even those containing aggressive additives)
Low compression set
Good for low-temperature applications
Thermal application range: -40 to +150°C, up to 175°C for short periods
Temp. Range, ℃ | -30 / 150 |
Compression Set | Good |
Phys. Strength | Good |
Low Temp. Prop. | Good |
Abrasion Resist. | Fair |
Gas Permeability | Low |
Weather Resist. | Excellent |
Hot Water Resist. | Fair |
Steam Resistance | Poor |
Ozone Resistance | Excellent |
Mineral Oil Resist. | Fair |
Chemical Resist. | Fair |
Flame Resistance | Poor |
Heat Resistance | Excellent |
Application:
AEM elastomers are primarily used where combined resistance to ozone, heat and oils is required. They are sometimes a good alternative to more expensive heat resistant elastomers such as fluorocarbon polymers (FKM), silicones (VMQ) and fluoro-silicones (FVMQ) for elevated temperature applications (< 150 °C, < 300 °F)
Most car manufacturers worldwide use them to produce engine-related components, including:
Turbocharger hoses and other hose applications
Blow-by gas and diesel particle filter sensor sheaths
Air management elements
Oil- and heat-resistant vibration dampers
Engine and transmission seals
Cylinder head cover gaskets
Oil filter and oil sump gaskets
Shift pistons
Specification of AEM Compound:
Testing condition:
Frist Curing ,(sheet)180℃*10min
Post Curing, (sheet)175℃*4h
Rheometer(ASTM D-2084)(180℃)T10(s)=55s T90(min)=6.9min
TEST ITEMS | UNIT | INDEX VALUE | TEST METHODS | TEST DATA | ||||
Hardness | A0 | D-2240 | 72 | |||||
Break strength | Mpa | D-421 | 12.8 | |||||
Elongation at break | % | D-421 | 256 | |||||
Aging test in hot air (150℃*70h) | ||||||||
Hardness change | A0 | 0~+10 | D-573 | +3 | ||||
Break strength change | % | Within -30 | D-573 | +15 | ||||
Elongation rate | % | Within -30 | D-573 | -20 | ||||
Compression permanent deformation (150℃*70h) | ||||||||
Compression permanent deformation | % | D-395B | 25.8 | |||||
ASTM 1# Standard Oil Resistance (150℃*70h) | ||||||||
Hardness change | A0 | -5~+10 | D-471 | +3 | ||||
Break strength change | % | Within -20 | D-471 | +10 | ||||
Elongation rate | % | Within -30 | D-471 | -19 | ||||
Volume change | % | -3~+15 | D-471 | -2 | ||||
ASTM 3# Standard Oil Resistance (150℃*70h) | ||||||||
Hardness change | A0 | Within -15 | D-471 | -11 | ||||
Break strength change | % | Within -30 | D-471 | -17 | ||||
Elongation rate | % | Within -20 | D-471 | +18 | ||||
Volume change | % | D-573 | +28 | |||||
Brittleness temperature | ℃ | -41 | ||||||
Color | Black |
Packaging&Storage:
Net weight 25kg/bags; Net weight 1000 kg/pallet.
Store in closed containers in a cool, dry, well-ventilated place. Avoid exposure under direct sunlight.
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