RUBBER MATERIAL DESCRIPTION
Material descriptions of our most commonly processed rubber materials for O-rings or molded rubber parts. A broad overview of the existing materials that we normally use. If you cannot find the materials, Shore, colors etc. you require in the table, please contact us.
| ACM | The outstanding property of acrylate rubber is its excellent resistance to heat and hot oil. ACM rubber is resistant to engine oils and modern additives, gear oils, lubricating greases, etc. Added to this is the high resistance to oxidation, ageing and ozone of a saturated polymer chain. Temperature range: from -30°C to +150°C Shore A Hardness / colors: 70, black |
| AEM | AEM has better strength but poorer mineral oil resistance than ACM. Temperature range: from -40°C to +150°C Shore A Hardness / colors: 70, black |
| Aflas(R) (FEPM) | Aflas(R) is a special peroxide cross-linked rubber and belongs to the newer generation of fluoroelastomers. Aflas(R) O-rings exhibit exceptionally good resistance to a wide range of specific media and chemicals such as hot water, steam, acids, alkalis, ammonia, bleach, acid gases (H2S) and oils as well as amines, especially media with amine-containing additives and corrosion inhibitors, alloyed engine and gear oils, brake fluids and oxidized media. Temperature range: from -20°C to +200°C Continuous temperature Shore A Hardness / colors: 70, black |
| EPDM | The area of application for this rubber is where high resistance to hot water and steam is required of the seal used. EPDM also has very good resistance to ageing and ozone. The cold resistance can be described as good compared to the usual types of synthetic rubber. Its resistance to oils, lubricating greases and solvents is similar to that of butadiene styrene rubber. Chemical resistance, including to oxidizing agents, is very good. Temperature range: from -40°C to +140°C Shore A Hardness / colors: 40, black 50, black 60, black, red (187C) 70, black, red (187C), white 80, black |
| ECO | ECO rubber combines the good properties of mineral oil resistance and low compression set of NBR with good weather and ozone resistance. Shore A Hardness / Colors: 70, black |
| FPM FKM | Exceptional resistance to the effects of mineral oils, aliphatic and aromatic hydrocarbons as well as chlorinated hydrocarbons, concentrated and diluted acids, weak alkalis. Excellent temperature resistance from -20°C to max. +230°C and high mechanical values place this synthetic rubber far above conventional synthetic rubbers. The likewise excellent ageing resistance, combined with a very good compression set, make FPM/FKM almost the ideal material Temperature range: from -20°C to 200°C Shore A Hardness / colors: 50, black 60, black, brown (4975C) 75, black, green (RAL6011), brown (4975C) 80, black, brown (4975C) 90, black, brown (4975C) |
| FFPM FFKM Comp. 9655 | Perfluoroelastomers achieve almost universal chemical and temperature resistance. However, they also have the sealing and recovery properties and creep resistance of elastomers. The very expensive and high-quality perfluoroelastomer is used when very high demands have to be met. Temperature range: from -20°C to 320°C Shore A Hardness / colors: 75, black, white |
| FFPM FFKM Comp. 9625 | A cheaper version of the perfluoroelastomer with high chemical resistance but reduced temperature resistance. Temperature range: from -20°C to +250°C Shore A Hardness / colors: 75, black, white |
| FFPM FFKM Comp. 9630 | A perfluoroelastomer with high temperature resistance and high chemical resistance. Temperature range: from -10°C to +310°C Shore A Hardness / colors: 75, black, white |
| NBR | This synthetic rubber is primarily resistant to the effects of oils, especially hydraulic oils, lubricating greases, petrol and other aliphatic hydrocarbons, acids and alkalis. Good physical properties, such as high abrasion resistance and stability, and favorable temperature resistance ensure this rubber has a wide range of applications. Temperature range: from -25°C to +110°C Shore A Hardnesses / colors: 40, black 50, black 60, black 70, black, red (187C), blue (280C) 80, black 90, black, red (187C) |
| HNBR | Is obtained from NBR polymers by full and partial hydrogenation of the butadiene components containing double bonds. This increases heat and oxidation stability during peroxide crosslinking. The resulting materials are characterized by high mechanical strength and improved abrasion resistance. The media resistance is comparable to NBR. Temperature range: from -40°C to +150°C Shore A Hardness / colors: 70, black, green (3298C) 80, black 90, black |
| XNBR | XNBR is similar to NBR, but it has been chemically modified. The result is better abrasion resistance and tear resistance than conventional NBR. For this reason, parts made of XNBR are normally used in dynamic applications such as seals or wipers.temperature range: from -20 to +100°CShoreA hardness / colors: 70, black |
| Natural rubber (NR) | Natural rubber is a highly elastic material with excellent physical properties. Despite the variety of available synthetic rubber types with their special characteristics, natural rubber still has an important field of application. Temperature range: from -45°C to +100°C Shore A Hardness / colors: 50, black 60, black 70, black, red (187C) 80, black |
| Neoprene (CR) | The chemical and physical properties are similar to those of NBR. Although the resistance to mineral oil is somewhat lower, the resistance to ageing, ozone, acids and alkalis is excellent. Temperature range: from -40°C to +120°C Shore A Hardness / colors: 50, black, red (187C), white 70, black 80, black, red (187C) |
| Polyurethane (PU) | The seals made of polyurethane elastomer are characterized by particularly high performance. Polyurethane O-rings have high mechanical values, such as tear and abrasion resistance, very good rebound resilience and high gas tightness. The fuel resistance and resistance to many common technical oils, especially those with a higher aromatic content, is excellent. Due to the good temperature flexibility and good low-temperature flexibility as well as excellent resistance to oxygen, ozone and fatigue, polyurethane gaskets have a long life expectancy Temperature range: from -40°C to +100°C Shore A Hardness / colors: 50, 60, 70, 80, 90, brown |
| SBR | SBR has excellent mechanical properties. The rubber retains its shape and high resilience. The rubber sheets are highly resistant to acids and salts. However, contact with oils and hydrocarbons should be avoided. Temperature range: from -50°C to +90°C Shore A Hardness / colors: 50, 60, 70, 80, black |
| Silicone (MVQ) | The area of application of this rubber results from its excellent temperature resistance which, however, must not be transferred to hot water or steam. Although the oil resistance of silicone rubber comes close to that of NBR, the good physical and mechanical properties of this material are not achieved. Temperature range: from -55°C to +200°C Shore A Hardness / colors: 30, red (187C), yellow (7404U) 40, red (187C) 50, red (187C), blue (280C) 60, red (187C) 70, black, transparent, red (187C), white |
| Fluorosilicone (FMVQ) | In addition to the typical properties of normal silicone rubber (VMQ), fluorosilicone rubber has significantly improved resistance to oils, fuels and solvents. This applies in particular to aromatic and chlorinated hydrocarbons and alcohols. Areas of application include high requirements over a wide temperature range and simultaneous exposure to aggressive media such as gasoline, alcohol mixtures, aromatic oils and a range of chlorinated solvents. Typical applications are gaskets in the fuel sector of the automotive and aircraft construction, as well as in the chemical industry. Temperature range: from -60°C to +200°C Shore A hardness / colors: 60, blue (280C) 70, blue (280C) |
| Approvals Conformity's | * according to FDA 21CFR177.2600, USP Class VI, REACH, RoHS, ADI, 1935/2004 etc. on request |
*Colors, the color specifications refer to O-rings are ugf. specifications in Pantone. Not every color is available in all Shore hardnesses.
Please clarify molded parts and other seals in advance.
Chemical resistance to various media:
Specifications are based on tests and information from suppliers and users. Due to the different operating conditions and composition of the media, this information should only be regarded as a guideline; it is not binding and must be checked on a case-by-case basis.