DuPont Performance Polymers (Wilmington, Del., USA) has introduced a new line of nylon thermoplastic materials, Zytel PLUS nylon, that reportedly maintains performance despite exposure to hot oil, hot air, calcium chloride and other aggressive automotive chemicals. The new family includes four products primarily targeted at the automotive industry, where the drive to take out weight and cost adds up to improved fuel economy and reduced carbon emissions. The line includes
- • Zytel PLUS 95G35 nylon, delivers good long-term performance at very high temperatures (up to 210˚C/410°F or even 230°C/446°F for shorter periods); also provides good surface appearance and resistance to calcium chloride solutions.
- • Zytel PLUS 95G50 nylon, delivers good long-term performance at very high temperatures (up to 210˚C/410°F or even 230°C/446°F for shorter periods); also provide good stiffness and resistance to creep at high temperatures.
- • Zytel PLUS 93G35 nylon, good long-term performance despite exposure to heat, plus improved weld lines and good performance in burst tests.
- • Zytel PLUS 90G30 nylon, good resistance to hot engine coolant, plus good properties in contact with water.
The nylon gets its ability to withstand long-term exposure to heat and chemicals from SHIELD Technology, which includes a new polymer backbone, polymer modifications and a special set of additives to enhance performance characteristics. Target automotive applications include charge air coolers, exhaust mufflers, turbo air ducts, engine mounts, resonators, cylinder head covers, oil pans, EGR coolers, oil modules, thermostats, transmission components and radiator end tanks where calcium chloride resistance is especially important due to road treatments.
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