Which rubber can be used where


Heat resistance

ACM – 30°C to +150°C Acrylate rubber is characterized by excellent heat and hot oil resistance. ACM is resistant to engine oils with advanced additives, gear oils, greases, etc. It has a high resistance to oxidation, aging and ozone resistance.
AEM -40 to +150 °C Good weather and ozone resistance
AU – 30°C to 100°C Divided into polyester urethane (AU) and polyetherurethane (EU). EU rubbers have a greater resistance to hydrolysis. Polyurethane materials are characterized by a particularly high mechanical performance and excellent ozone and aging. Also, the mechanical properties such as flexibility, tensile strength and abrasion resistance, very good resilience and a high gas tightness are to be mentioned positively. Thus the material for small-sized hydraulic sealing elements is particularly suitable. The fuel resistance and resistance to conventional oils is technically very good.
CR – 40°C to 110°C The chemical and physical properties are similar to those of NBR. However, CR is resistant to aging and weathering on ozone, coolants, acids and alkalis.
CSM – 20°C to 130°C CSM exhibits high resistance to aging and ozone resistance, and good resistance to acids and alkalis. Good mechanical and physical properties characterize CSM. The resistance to swelling in aliphatic hydrocarbons and fats is mediocre and strongly swelling in aromatic and chlorinated hydrocarbons and esters.
ECO -40 to +140 °C Good resistance to mineral oils and greases, propane
EPDM – EPM – 40°C to 150°C EPDM has a very good ozone, aging and weathering. Therefore, it is mainly its use in outdoor exposure and where good hot water and steam resistance is required. The cold resistance is compared with other types of synthetic rubber good. EPDM is strongly swelling in aliphatic, aromatic and chlorinated hydrocarbons.
FEPM – 30°C to 200°C FEPM is a relatively new peroxide-cured elastomer TFE. It has a high resistance to a variety of specific media, and chemicals such as Hot water, steam, acids, alkalis, ammonia, bleach, acid gases (H2S) and oils and amines, especially media with amine-containing additives and corrosion inhibitors, alloy engine and gear oils, brake fluids and oxidized media.
FFKM – FFKM – 20°C to 300°C Perfluoroelastomers achieve nearly universal chemical and temperature resistance of PTFE, in addition to the properties of elastomers. The use of this very expensive material is economical only in individual cases.
FKM – FPM – 20°C to 200°C An elastomer with very good resistance to mineral oils, aliphatic and aromatic hydrocarbons and chlorinated hydrocarbons, concentrated and dilute acids and weak alkalis. High mechanical strength and also the very low gas permeability and excellent resistance to aging, associated with a very good compression set, can fluoroelastomers almost appear as universal material.
FVMQ – 75°C to 200°C Fluorosilicone has significantly improved resistance to oils, fuels and solvents on the MVQ. This is especially true for aromatic and chlorinated hydrocarbons and alcohols. Applications are given for high demands, over a wide temperature range, with simultaneous exposure to aggressive media. Applications include gaskets in automotive fuel systems, the aerospace industry and in the chemical industry.
HNBR – 30°C to 150°C Obtained from NBR polymers by full or partial hydrogenation of the double bond-containing Butadienanteile. This in peroxide crosslinking increases the heat and oxidation stability. High mechanical strength, improved abrasion resistance and a low compression features of the elastomer. The chemical resistance is comparable with NBR at elevated steam resistance.
IIR – 40°C to 140°C Butyl has very low permeability, high aging resistance and good electrical properties. Very good resistance to animal and vegetable oils and fats characterize this material. Butyl is not suitable for use in mineral oils and greases, gasoline and aliphatic and aromatic and chlorinated hydrocarbons.
NBR – 30°C to 100°C A synthetic rubber with excellent resistance to fuels, oils, hydraulic oils, greases, and other aliphatic hydrocarbons. Good physical properties such as abrasion resistance and durability in addition to good thermal stability to allow a wide application.
NR – 45°C to 90°C Natural rubber is a highly elastic material with excellent physical properties, excellent mechanical strength and excellent low temperature properties. Natural rubber is despite more modern synthetic rubbers still used for engine mounts, engine bearings, rubber-metal composites, and the like.
PTFE – 200°C to 260°C PTFE is unassailable by almost all chemicals. Exceptions are alkali metals, elemental fluorine hot. Halogen-containing compounds cause reversible swelling or walking through due to the chemical affinity, the PTFE without damaging it. The lubricating properties of PTFE are the best of all plastics. Static and dynamic friction coefficient are the same, which makes the material to a stick-slip-free friction material. It is completely weather-and UV-resistant. Even extreme climatic conditions do not alter the properties of PTFE. It is physiologically harmless, i.e. endogenous substances in contact with the material cause any reactions. Important properties of this plastic material such as compressive strength, abrasion resistance etc. conductivity can be selectively optimized by mixing appropriate fillers.
PU, PUR -30 to +80 °C Good aging and ozone resistancet
SBR – 40°C to 90°C Materials from SBR are preferably used in the automotive hydraulics (brakes, steering, clutch). SBR is characterized by good resistance to inorganic and organic acids and bases, glycol-based brake, water and alcohol. Due to substantial swelling unsuitable in mineral oils, greases, fuel, aliphatic, aromatic and chlorinated hydrocarbons.
VMQ – MVQ – 55°C to 200°C Silicone has a very high temperature resistance. Although the oil resistance of the silicone rubber around the reaches of NBR, the good physical and mechanical properties are not achieved. MVQ also is not suitable for continuous use in hot water or steam.