Insulation And Sheathing Materials

When designing the best possible cable for the customer, choosing the right insulation and sheathing material is a key factor.

In addition to the demand profile for the cable itself (required functions and operating life), external influences such as ambient temperatures, temperature fluctuations, UV radiation, mechanical stresses (e.g. due to movement, bending, friction, tension, torsion), chemical influences (contact with oils, greases, chemicals) and the mutual influence of the materials on each other must also be taken into account.

Added to this are requirements for environmental compatibility (recyclability), fire behavior (functional integrity in the event of fire, fire continuation, smoke gas development) and, of course, costs.

In everyday practice, it is almost always a combination of different criteria that influences the choice of material.

Only time will ...

... heal all wounds. Unfortunately, this does not apply to plastics. Here, the aging processes take place continuously, which can be considerably accelerated by the effects of the previously mentioned factors. Continuously changing stresses lead to material fatigue. The materials become brittle, porous or deform. This can lead to premature failure of the cable and thus cause damage to the entire system.

It's the right mix that counts!

HEW-KABEL has a wide range of different plastics that can be modified characteristically and optimally adapted to the intended use by adding special additives or by using special manufacturing processes.

Our Portfolio Includes the Following Types of Plastics:


Fluoropolymers are long-chain polymers in which a large proportion or even all of the hydrogens contained are replaced by fluorine. Fluorine atoms have the highest electro negativity, which means that the carbon-fluorine compound has a very high binding energy.

Learn more


Elastomers are long-chain polymers that have thermoplastic properties in the uncombined state. They become soft with rising temperature and are thus extrudable. Only through vulcanization (crosslinking) is a narrow- or wide-meshed structure formed.

Learn more


Silicones respectively silicone rubbers belong to the class of elastomers, but differ in the fact that the main chain is not composed of carbon compounds, but of alternating silicium and oxygen atoms. The silicium atoms carry organic substituents, preferably methyl groups.

Learn more

Thermoplastic Elastomers

Thermoplastic elastomers (TPE) combine the properties of thermoplastics and elastomers. For example, TPE exhibits elastic behavior at room temperature, but can be plastically deformed when heat is applied.

Learn more

High-performance Thermoplastics

High-performance thermoplastics (special thermoplastics) differ from "simple plastics" in their complex polymer structure. They consist of aromatic structures and additional functional groups, such as ether or imide groups.

Learn more