What is ACM rubber?
Acrylic rubber, known by the chemical name alkyl acrylate copolymer (ACM), is a type of rubber that has outstanding resistance to hot oil and oxidation. ACM has a continuous working temperature of 150 °C (302 °F) and an intermittent limit of 180 °C (356 °F). ACM is resistant to ozone and has low permeability to gases. The swelling resistance in the presence of mineral oils is better than that of ethylene acrylic rubber (AEM).
Properties of Acrylic Rubber (ACM rubber)
These are some of the properties of ACM rubber compounds:
Grades | Cure sites, HT |
Hardness Range (ShA) | 50 – 80 |
Thermal Resistance continuous/peak (°C) | 150 / 175 |
Low temperature (°C) | – 30 |
Chemical Resistance | High temperature alyphatic oils |
Weatherability | Excellent ozone resistance |
Others | Low gas permeability |
Curing | Metal stearate, amine, peroxide |
Material processing
The manufacturing technologies of these types of compounds are the traditional compression and injection molding, extrusion, calendaring and coating process.
Some specialties require exclusive reticulation agents that take advantage of specific chemical properties.
What is ACM rubber typically used for?
ACM rubber is mostly used in the Automotive and Transportation market because it is resistant to engine / transmission oil and to automatic transmission fluids. ACM rubber is used to manufacture automotive components such as transmission seals, turbocharger hoses, O-rings, diaphragms and fluid handling applications.
Rubber Application Matrix
HEXPOL’s rubber compounds can be used in a variety of different applications. Download our Application Matrix to see which compounds can fit your application.
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