Multilayer tubing system offered for coolant lines.

This global supplier of polyamide 12 for multilayer plastic line systems has expanded its product range with another multilayer tubing system (MLT) for coolant lines. MLT 8000.3 is more flexible than the MLT 8000.1.

Coolant lines of the 8000 series, which have diameters up to 30 mm and wall thicknesses ranging from 1 to 1.5 mm, consist of three layers. A polypropylene suitable for this application forms the inner layer. On top of this is an adhesion-promoting layer, followed by an outer layer made of the high-grade specialty polyamide Vestamid. Because of a modification carried out at the molecular level, the compound for the MLT 8000.3 provides higher flexibility without a plasticizer having to be added. The MLT 8000.1, on the other hand, features higher bursting strength, especially at high temperatures. The user can thus choose a system that matches his or her requirements.

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Cooling line systems made of plastics are said to offer many advantages over conventional metal systems or elastomer hoses. They are lighter, thinner because of their strength, and easier to thermoform. In contrast to metal lines, they are not susceptible to corrosion and resist vibration cracking. They are said to be easily and quickly joined by means of quick connectors, making them more economical. Compared to elastomer hoses, the outer polyamide layer also provides low-temperature impact strength, stone impact resistance and chemical resistance.

Degussa GmbH

www.degussa-hpp.com