HyTemp ® Polyacrylate Elastomers
HyTemp HT-ACM Series
Automotive-related demands on elastomers continue to become more severe. Not only are the temperature demands becoming greater, but the specification-related constraints both in time and newer test techniques, such as compressive stress relaxation (CSR), are more demanding as well. In order to assist the industry in this regard, Zeon Chemicals has developed and commercialized the new family of polyacrylic polymers known as high-temperature ACM, or HT-ACM. This family exhibits an improved level of heat and compression set resistance heretofore not seen in ACM elastomers. These improvements are achieved without sacrifice in strength, low-temperature properties or oil resistance. The superiority of these new elastomers over traditional ACM elastomers has been successfully demonstrated in many under-the-hood applications, including valve cover and oil pan gaskets, seals, hoses, and air ducts.
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Need more technical information?
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| Heat Resistance |
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Polymer |
ML1+4 @
100°C |
Tg, °C |
Oil Aged 1
% Vol  |
Polymer Characteristics |
| Greatest |
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HyTemp AR12 |
28-38 |
-30 |
30% |
Optimized for improved long-term heat and compression set resistance over traditional acrylates with good low-temperature properties. |
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HyTemp AR212HR |
34-44 |
-25 |
24% |
Optimized for extrusion applications. |
| HyTemp AR212XP |
25-45 |
-25 |
24% |
Optimized for fast rate of extrusion. Excellent dynamic properties and tear resistance. |
| HyTemp AR214 |
30-40 |
-40 |
30% |
Optimized for extrusion applications. Low-temperature version of AR212HR. |
| Least |
| HyTemp AR13FR |
30-40* |
-30* |
5%* |
Improved resistance to oils and low-molecular weight fuels such as gasoline. |
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1 IRM 903, Aged 70 Hrs @ 150°C
*New product – target properties.
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