DESCRIPTION
AEM rubber is a unique rubber variant made from a copolymer blend of ethylene and methyl acrylate. A small fraction of a third monomer is also added to ensure cross-linking during the vulcanization process. The creation of AEM rubber was driven by the need for a rubber type with superior heat and oil resistance capabilities compared to other varieties of rubber.
Encompassing excellent long-term aging properties, AEM rubber is also highly resistant to weathering, ozone, and UV rays. It boasts good chemical resistance and electrical properties, and retains flexibility in low temperatures without becoming excessively hard in high heat conditions. This feature makes it suitable for a vast array of temperature applications.
Moreover, AEM rubber is renowned for its compatibility with mineral oil-based fluids, water, and diluted acids along with several other substances. Its unique properties make it a popular choice in the automotive industry for manufacturing components such as seals, O-rings, gaskets, and hoses. It also finds usage across various other industries for different applications.
Nevertheless, it's important to note that AEM rubber does not blend well with certain substances like brake fluids, aromatic hydrocarbons, and strong acids.
FEATURES
Automotive Applications: AEM is commonly used in the automotive industry in systems requiring excellent heat and oil resistance, like transmission seals, rocker covers, and automotive cooling systems.
Industrial Seals and Gaskets: Due to its excellent resistance to heat and weather, AEM is used in making seals and gaskets used in various industrial applications.
Wire and Cable Insulation: AEM's resistance to heat, weather, and oil make it a good material for wire and cable insulations in industries like electronics and telecommunications.
HVAC Systems: AEM is often used in heating, ventilation, and air conditioning systems due to its resistance to weathering and temperature extremes.
PARAMETERS
| 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 |
APPLICATIONS
1. Automotive Components: AEM rubber is often used in the manufacture of various automotive parts such as seals, hoses, gaskets, and O-rings due to its resistance to oil and heat.
2. Industrial Seals: In industries where machinery operates under high temperatures or comes into contact with oils, AEM rubber is used to create seals that can withstand these conditions.
3. Wire and Cable Sheathing: Because of its resistance to weathering, UV, and ozone, AEM rubber is often used as a protective sheath for wires and cables, particularly in harsh outdoor conditions.
4. HVAC Systems: AEM rubber's heat resistance and flexibility make it suitable for use in heating, ventilation, and air conditioning systems, particularly for components that need to withstand a wide range of temperatures.
