Thermal Properties

Arnitel is extensively used in applications over a very wide range of temperatures. Arnitel retains its mechanicals at very low temperatures of -45°C right up to 150°C. Arnitel is the material of choice when it comes to life saving applications at critically low temperatures. 

Burst Pressure

In automotive pneumatic tube and hose applications such as air brake tubing, pneumatic tubing and air-ducts for turbo chargers, an important requirement is a high burst pressure at under the hood temperatures.
Burst pressure is related to the yield stress of the material. Arnitel can withstand very high burst pressures and retains its properties better at higher temperatures than competitive materials such as PA12.

 

Chemical resistance

Arnitel has very good resistance to automotive greases and oils. This makes Arnitel highly suitable for use in automotive applications in contact with greases and oils at high temperatures such as cable ties, fuel lines, and hydraulic tubes and hoses.

 

Two component (2K) molding

Arnitel can be over-molded on other plastics to give a soft-touch feel combined with good mechanical properties, and for enhancing grip to improve torsion transport. Overmolding with Arnitel is also used for sound dampening applications such as in door latches. Overmolding can be easily achieved by injection molding on molded components which are designed with ribs, grooves, etc which act as under-cuts that the overmolding can hold on to.

 

Creep resistance

Arnitel has excellent resistance to creep. In critical automotive applications where the retention of mechanical properties under constant stresses for very long durations is required, Arnitel’s high resistance to creep makes it the material of choice, contributing to greater safety and extended durability.

Fatigue resistance

Arnitel has out-standing resistance to flexural fatigue both at high temperatures and sub-zero temperatures. Applications such as constant velocity boots, and rack and pinion bellows are subjected to temperatures from as low as -45°C to a high of 150°C, and also encounter very high levels of flexural fatigue.

 

Kink resistance

Arnitel is used in applications for transmitting pressure, primarily as a component of an actuation system such as in pneumatic tubes and hydraulic tubes where kink resistance becomes extremely important.

 

Membrane permeability

From the world of construction to the medical, textile, packaging industries, there is growing demand for high-tech films and coatings that combine a number of properties including flexibility, elasticity, and permeability to water vapor, chemical resistance and thermal resistance.

 

UV resistance

Arnitel has excellent UV resistance. In outdoor applications where UV resistance and color protection is key, Arnitel is the choice of nature. For extreme exposure, special developed master batches can further enhance the excellent performance even more.

 

Processing

Arnitel can be injection molded, blow molded, and extruded. DSM has a broad portfolio available, in which products are listed suitable for the various product requirements and production technologies.