Ultramid® Endure is a glass fiber-reinforced polyamide that combines excellent heat aging resistance with the good processing properties of PA 66. Ultramid® Endure is able to withstand continuous use over 3,000 hours at up to 220°C and brief temperature peaks of up to 240°C. It thus extends the application of polyamide into the high temperature range. Ultramid® Endure is suitable both for injection molding and for blow molding. This makes the plastic the perfect replacement for metal for components used in all parts of the charge air duct ‒ from the turbocharger and pipes through to the intercooler.
Properties of the plastic resistant to hot air:
The high-performance plastic Ultramid® Endure is to date the most heat-resistant, polyamide-based injection-molding material available in the market. For example, the grade Ultramid® Endure D3G10 with 50 percent glass fibers offers a considerably increased stiffness at elevated temperatures:
Identifiable by its modulus of elasticity: Over a period of three months (approx. 2,200 hours) of heat aging, the stiffness of Ultramid® Endure D3G10 remains stable at a high value of about 17,000 MPa, measured as a modulus of elasticity in accordance with ISO 527-2 (1993) at 23°C. Prior to the aging test, the material shows a modulus of elasticity of around 4,000 MPa at 220°C, about 30% more than the less stiff D3G7 version.
Ultramid® Endure is suitable for components close to the engine in the charge air duct of turbocharged engines in particular. The material offers a continuous-service heat resistance temperature of up to 220°C for applications requiring maximum stiffness.
This means that even more metal can be replaced in the engine compartment. In contrast to high-priced specialty plastics, using Ultramid® Endure results in a considerable reduction of the system costs.
BASF is closing the gap between the turbocharger and the intercooler with the market launch of the blow-molding grade Ultramid® Endure D5G3 BM. The new blow-molding grade with a glass fiber content of 15% has a level of heat aging resistance which is just as high as that of the injection-molding grade, is easy to process in the suction blowing method and also shows excellent acoustic properties.
Properties of the blow-molding grade Ultramid® Endure D5G3 BM:
The trend towards increased efficiency in automotive construction leads to a continuous rise in the temperatures in the engine compartment. As a result, automotive manufacturers today are attempting to improve the energy efficiency of vehicles by various means including turbocharged engines. In turbocharged diesel engines, for example, operating temperatures of up to 220°C and temperature peaks of up to 240°C are common in the area between the turbocharger and intercooler.
The subject of acoustics has now become a brand-defining factor and is therefore assuming a real significance in the automotive industry. New engine concepts and continuously rising demands from customers and legislators call for acoustically advantageous materials. Ultramid® Endure boasts excellent damping behavior and is therefore ideally suited to solving acoustic challenges.
The heat-resistant Ultramid® Endure is an ideal alternative to metal and other plastics such as PPS. The high-temperature polyamide is suitable for all components which are exposed to a higher continuous thermal loading over a prolonged period of time.
The applications are as manifold as its product properties: Explore the various application possibilities of Ultramid® Endure!