Materials
Materials & grades
An overview of our elastomers, foams, plastics and high-pressure sealing materials, plus a summary of temperature ranges and approvals.
Elastomers
NR · NBR · EPDM · FKM · VMQ
Temperatures
-50 to +320 °C
Approvals
KTW · DVGW · FDA · UL94
Compliant
REACH & RoHS
Overview
The right material for every requirement
Here you will find an overview of the elastomers, foams, plastics and high-pressure sealing materials we use to manufacture our products. Each material offers specific properties and application benefits to meet the diverse requirements of our customers.
Our range of materials includes elastomers such as NR, SBR, NBR, H-NBR, CR, EPDM, TPE, solid and liquid silicone (LSR) and Viton (FPM, FKM, FFKM), as well as foams such as sponge rubber, cellular rubber and silicone foam, and plastics (thermoplastics) such as rigid and flexible PVC, PA, PC, PE and PP.
The materials offer a wide variety of properties and resistances: good abrasion resistance and elasticity, chemical resistance to a wide range of media, UV, ozone and weather resistance for outdoor use, and broad temperature ranges for the most diverse applications.
In addition to punched parts, moulded articles and extrusions, we also produce blanks cut by water jet or plotter to your specifications, as sheet or roll cuts. All products are REACH and RoHS compliant. IMDS data, technical data sheets, material lists (Shore hardnesses and material thicknesses) and detailed chemical resistances are available on request.
At a glance
Elastomers, foams, TPE and plastics
NK / NR
Natural rubber
Simple standard grade for applications without demanding requirements. Only very limited resistance to acids and alkalis. Also available as para rubber with good elasticity.
SBR
Styrene-butadiene rubber
Very good abrasion resistance. Only limited resistance to acids and alkalis. Not suitable for contact with oil and fuel. Generally used as a compound component in other elastomers.
NBR
Nitrile-butadiene rubber
Good abrasion resistance and very good resistance to most oils and lubricants. Not recommended for acids and alkalis. Available with food approvals to FDA, BfR and EC 1935/2004.
H-NBR
Hydrogenated nitrile-butadiene rubber
High-quality all-round elastomer with a wide temperature range and very good wear and ageing behaviour.
EPDM
Ethylene propylene diene monomer
Very good UV, ozone and weather resistance. Excellent for outdoor use, resistant to seawater. Not suitable for contact with oil. Available with drinking water approvals to KTW-BWGL, EN 16421 (W270) and food approvals to FDA, BfR, EC 1935/2004.
EPDM blue
Drinking water & food
New compound in the typical drinking water blue, KTW-BWGL, FDA and EC 1935/2004 compliant, peroxide-cured, 70 Shore A, up to +150 °C.
CR
Chloroprene, neoprene
Good weather and ozone resistance, only limited resistance to fuels, not recommended for acids. Self-extinguishing (flame-retardant), e.g. to UL94 or FMVSS 302. Contains halogens.
Silicone (VMQ)
Solid silicone
Suitable for high temperatures up to approx. 200 °C. Very good UV, weather and ozone resistance. Also suitable for contact with oil. Available with food approvals to FDA, BfR and EC 1935/2004.
LSR
Liquid silicone
Excellent flowability, ideal for producing moulded articles as well as O-rings, seals and hoses.
Viton
FPM, FKM, FFKM
Ideally suited for high temperatures up to approx. 250 °C. Very good UV, weather and ozone resistance. Good fuel resistance, also suitable for contact with oil.
AEM / ACM
Ethylene acrylate / acrylate rubber
For hot oils and gear oils, better temperature resistance than NBR. Typical in engine and gearbox manufacturing and in the automotive industry. AEM remains more flexible at low temperatures than ACM.
TPE
Thermoplastic elastomers
Good abrasion resistance and tensile strength, UV and weather resistant, free of plasticisers, high temperature resistance, recyclable. All RAL colours can be produced from this material.
Sponge rubber
Open-cell foam
Open-cell foam in various grades such as NBR, CR and EPDM, with the individual properties of the respective elastomers.
Cellular rubber
Closed-cell foam
Closed-cell foam in various grades such as NR, EPDM, CR and NBR, with the individual properties of the respective elastomers.
Silicone foam
Foamed silicone
Closed-cell foamed material with high temperature resistance. In light/white or blue. Available with food approvals to FDA, BfR and EC 1935/2004.
Plastics
Thermoplastics (PVC, PA, PC, PE, PP)
Good wear and abrasion resistance, good strength and impact resistance, various chemical resistances through to very good electrical insulation properties. Many RAL colours possible.
Pertinax
Phenolic resin paper laminate
Thermoset material made of paper laminate and phenolic resin, excellent electrical insulation up to approx. +120 °C.
Aramid fibre
High-pressure sealing material
Fibre-reinforced gasket sheets for very high temperatures and pressure ranges, e.g. for flange seals with steam, hot water, oil and gas. Also high-pressure sealing material from well-known manufacturers such as Frenzelit, Hecker, Tesnit and others.
Abil N
Cellulose fibre sealing material
Cellulose fibre gasket sheets with NBR binder, oil and fuel resistant, compressible, -30 to +120 °C.
On request, sheet material and compounds are also available in the RAL colours customary in elastomer processing.
Configurator
Find the right material
Select the operating temperature, media and required approvals, and the material recommendation updates live. Add your contact details and send the enquiry together with your selection.
Temperature resistance
Continuous temperature ranges
As a rule, all grades are sulphur-cured. On request, we also supply EPDM and NBR peroxide-cured and silicone platinum-cured, with correspondingly higher resistance at elevated temperatures.
| Abbreviation | Elastomer | Continuous temperature range |
|---|---|---|
| NR / NK | Natural rubber | -30 °C to +80 °C |
| SBR | Styrene-butadiene rubber | -30 °C to +100 °C |
| NBR | Nitrile rubber | -30 °C to +100 °C |
| H-NBR | Hydrogenated nitrile rubber | -40 °C to +150 °C |
| EPDM | Ethylene propylene diene monomer | -30 °C to +140 °C |
| CR | Chloroprene / neoprene | -40 °C to +100 °C |
| ACM | Acrylate rubber | -30 °C to +170 °C |
| AEM | Ethylene acrylate rubber | -40 °C to +170 °C |
| FKM / FPM | Fluororubber | -20 °C to +220 °C |
| FFKM | Perfluororubber | -15 °C to +320 °C |
| VMQ | Silicone rubber | -50 °C to +200 °C |
Standards & approvals
Available with the right approval on request
Approvals
Automotive factory standards
All products are REACH and RoHS compliant. IMDS data and technical data sheets are available on request.
Knowledge
Related technical articles
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Read moreWorking together
Unsure which material to choose?
Tell us the medium, temperature, standard and application, and we will recommend the right material and send technical data sheets on request.