Materials & grades

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.

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.

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.

Hydrogenated nitrile-butadiene rubber

High-quality all-round elastomer with a wide temperature range and very good wear and ageing behaviour.

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.

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.

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.

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.

Liquid silicone

Excellent flowability, ideal for producing moulded articles as well as O-rings, seals and hoses.

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.

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.

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.

Open-cell foam

Open-cell foam in various grades such as NBR, CR and EPDM, with the individual properties of the respective elastomers.

Closed-cell foam

Closed-cell foam in various grades such as NR, EPDM, CR and NBR, with the individual properties of the respective elastomers.

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.

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.

Phenolic resin paper laminate

Thermoset material made of paper laminate and phenolic resin, excellent electrical insulation up to approx. +120 °C.

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.

Cellulose fibre sealing material

Cellulose fibre gasket sheets with NBR binder, oil and fuel resistant, compressible, -30 to +120 °C.