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Materials & qualities

An overview of our various elastomers, foams, plastics and high-pressure materials as well as a brief overview of the IP protection classes

Siegel Materials

Our materials with Shore hardnesses & material thicknesses:

- Elastomers
- Plastics
- Cellular rubber (closed-cell)
- Sponge rubber (open-pore)
- Foams

Siegel High-pressure sealing material

Our materials with material thicknesses:

- Aramid fiber (high-pressure sealing material)

IP protection classes

A brief overview of the classifications

Here you will find an overview of the various elastomers, plastics and high-pressure sealing materials that 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 a wide selection of elastomers such as natural rubber (NK), styrene-butadiene rubber (SBR), nitrile-butadiene rubber (NBR), hydrogenated nitrile-butadiene rubber (H-NBR), chloroprene (CR), ethylene-propylene-diene-methyl (EPDM), thermoplastic elastomers (TPE), solid silicone, liquid silicone (LSR), Viton (FPM, FKM, FFKM) and various foams such as sponge rubber and cellular rubber.
Our materials offer a variety of properties and resistances, be it good abrasion resistance, good elasticity or chemical resistance to a wide range of substances and media, UV, ozone and weather resistance for outdoor use, as well as wide temperature ranges for a wide variety of applications.
We can also meet specific standards and approvals, such as UL94, KTW, EN16421, DVGW, FDA, BfR and others, as well as industry-specific standards in the automotive sector.

If you have any further questions about our materials or require technical data sheets and a detailed overview of chemical resistance, please do not hesitate to contact us and we will be happy to advise you on the right choice of material.
All our products meet the applicable requirements and are REACH and RoHS compliant.
IMDS data is available on request.

Brief overview of elastomers

Technical data sheets and detailed chemical resistances for the individual qualities are available on request.

NK, NR (natural rubber)

Simple standard quality with very good abrasion resistance. Only very limited resistance to acids and alkalis

NBR (nitrile butadiene rubber)

Good abrasion resistance and very good resistance to most oils and lubricants. Not recommended for use with acids and alkalis

CR (chloroprene, neoprene)

Good resistance to weathering and ozone, not recommended for use with acids. Self-extinguishing (flame retardant)

Foam rubber

Open-pore foam in various qualities such as NBR, CR, EPDM

Silicone, LSR

Suitable for use in high temperatures up to approx. 200° C. Very good UV, weathering and ozone resistance. Also suitable for contact with oil

Automotive sector

Among others we deliver to:

VW 2.8.1...
DBL 55...
BMW 602...

and others.

SBR (styrene butadiene rubber)

Very good abrasion resistance. Limited resistance to acids and alkalis. Not suitable for contact with oil

EPDM (ethylene propylene diene methyl)

Very good UV, ozone and weather resistance. Excellent for outdoor use. Not suitable for contact with oil

TPE (thermoplastic elastomers)

Good abrasion and tensile strength, UV and weather resistant, free from plasticizers, high temperature resistance

Cellular rubber

Closed-cell foam in various qualities such as NK, EPDM, CR, NBR

Viton (FPM, FKM, FFKM)

Ideally suited for use in high temperatures up to approx. 250° C. Very good UV, weathering and ozone resistance. Also suitable for contact with oil

Standards and approvals

On request, we can also supply with various standards and approvals, such as to:

UL94
KTW
EN16421 (W270)
DVGW
FDA
BfR

Die Siegel Dichtungen Gummi- und Kunststofffabrik GmbH ist seit über 70 Jahren ihr Partner für die Produktion stanztechnischer, extrudierter und formgepresster Gummierzeugnisse

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