"KOEPPCell®" Cellular polyethylene

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Product description

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Cellular polyethylene

Cellular polyethylene is one of the most versatile and cutting-edge cellular materials in terms of application and processing quantity. That is why we produce and sell an enormous range of PE types including cross-linked polyethylene foams with various densities and in many colours and various degrees of softness.

KÖPP also offers electrically conductive, anti-static and fire resistant qualities of cellular polyethylene. The range includes metallocene qualities, a unique polyamide foam and PE and EVA blends.

Cellular polyethylene – the material

All our cellular polyethylene qualities combine the positive properties of a plastic: high ageing stability, high chemical resistance, low emission values, exceptionally uniform density, they are odour-free and suitable for hot forming processes. It comes as no surprise that the possible applications for polyethylene are almost unlimited: from automotive engineering and the packaging sector to countless industrial applications, medical technology and orthopaedics.

In order to meet all our clients’ needs, we offer polyethylene in different qualities, densities and block sizes, and in selected blends. We can supply you the material as blocks, sheets or rolls, processed into strips or punched, moulded or milled parts, with or without a self-adhesive coating.

Technical data

A variety of densities (from 18 kg/m³)
Low heat conducting values (approx. 0.04 W/mK)
High resistance to chemical corrosion
Low fogging. Non-allergenic
High ageing stability
Suitable for hot-forming processes
Highly fire resistant (FR)
Coloured version also available
Electrically conductive or anti-static versions available
Easy to work
Cost-effective
High temperature resistance

Materials

LDPE

Low-density polyethylene a closed-cell polyethylene foam that is cross-linked under high pressure. The standard qualities have densities ranging from 18 kg/m³ to 70 kg/m³ and they are available in a wide variety of colours. The range also includes qualities that are highly fire resistant, electrically conductive, static dispersive, and particularly suitable for hot forming.

Thanks to the great variety of options on offer, LDPE foams are used in various sectors, including packaging and the automotive industry, the health sector, medical technology and the construction sector..

HDPE

High-density polyethylene is a closed-cell polyethylene foam that is cross-linked under low pressure. It has densities between 30 kg/m³ and 115 kg/m³. An attractive feature of HDPE foams is their excellent heat resistance.

Their structure is significantly more pressure-resistant and rigid than LDPE, so HDPE foams are the ideal material for technical applications.

EVA

EVA is a closed-cell, cross-linked EVA, available with densities ranging from 25 kg/m³ to 80 kg/m³. EVA foams are more tough and elastic than LDPE foams and they are often used in the area of sports and leisure.

You can choose from a wide range of colours and there is even an electrically conductive (CN) version, too. One of the features of this material is that it has a high return rate (i.e.. a low compression set).

Who are we?

W. KÖPP GmbH & Co. KG has a long, illustrious history as a leading manufacturer and processor of cellular rubber, polyethylene foam and sponge rubber. Our product portfolio now also includes moulded parts and foam plastics of various types.

At our two locations in Germany, at our production facility in Romania, and as part of our joint venture in India, KÖPP employs over 300 staff and it is now a truly global company. Our products made from a huge variety of materials are used throughout industry and will be found in numerous applications in the automotive, packing, aerospace and mechanical engineering sectors.

As a manufacturer, dealer and processor, we consistently use our skills throughout the entire value chain. This strong combination of manufacturing expertise and processing and service skills is unique in Europe. These different areas of expertise make us what we are: Experts in Foam.

Manufacturer

Cellular rubber, polyethylene, sponge rubber and solid rubber are produced in-house at KÖPP. Choose from a wide range of different elastomers and quality levels.

At the in-house production facilities of our subsidiary S.C. KOEPP Romania S.R.L. we produce our KOEPPcell® range of cellular rubber blocks made of EPDM, chloroprene rubber, natural rubber and polyethylene, developed in Germany. Our modern production technology guarantees the highest quality at particularly interesting prices.

At our location in Bovenden, we also have renowned experts in manufacture of sponge rubber and solid rubber. We use over 500 tonnes of raw compound every year to make moulded parts, profiles, round cords and other product solutions.

If you bring us in at an early stage of your seal solution design, you can benefit from our manufacturing expertise to get the best possible solution right from the start. Excellence and quality “Made by KÖPP”.

Dealer

KÖPP offers you the widest range of cellular rubber and cellular polyethylene qualities in Germany and across Europe direct from stock: almost every type of elastomer, a huge variety of densities, and a whole range of special qualities – flame-retardant, static dissipative, peroxide-cured or low-smoke.

Make the most of our wide range, and thanks to our huge storage capacity we can supply you at short notice, with accuracy and in quantities optimised to suit your needs.

Processor

We meet your requirements by providing perfectly fabricated materials, which are precisely split, with a durable adhesive coating, precisely tailor-made – this is the core competence of KÖPP. Our products are produced to meet your individual needs, so you can bring them directly into your manufacturing process with confidence for a perfect end product.

Of course, we also offer ready-made solutions to meet your specifications using any of the materials we offer. With our highly modern machine tools, we are perfectly equipped to meet all your requirements.

Service provider

We can give you solution-oriented advice from the beginning, as we have an eye on all the alternatives, and we also have most materials available from stock. Our ability to discuss the pros and cons of all sealing variants constructively with our customers is our strengh and it makes us unique in this sector.

Benefit from our many years of expertise as Europe’s largest service provider for formed-in-place gaskets (FIPG / FIPFG).

Our broad selection of materials and our focus on manufacturing mean we are in an excellent position to produce prototypes and test production runs.

We can work with you to select the best solution for your application from a wide variety of processes, concepts and materials. You can only get this “one-stop shop” service from KÖPP.