Non-reinforced grades are good for parts that require surface smoothness and transparency, and fiber reinforced grades are good for parts requiring higher strength and rigidity. The SUMIPLOY series can be used for parts that require good sliding properties. PES has excellent rigidity over a wide temperature range (-100 to 180°C), dimensional stability, creep resistance at high temperatures, and chemical resistance to gasoline and engine oil. The SUMIPLOY series have also excellent sliding characteristics. Typical applications in automotive and machinery parts are as follows.

• Automotive lamp components (reflectors, lens holders, etc.)
• Fuse case
• Oil pumps
• Bushings for brake shafts
• Thrust washers
• Sprues for oil control valves
• Gears
• , etc.

Application Examples of SUMIKAEXCEL PES in Automotive Parts

SUMIKAEXCEL PES has good heat resistance and excellent dimensional stability, so it can be used for the parts in engine rooms and lamp components. Figure 6-2-1 shows application examples in automotive parts.

Figure 6-2-1 Application Examples of various grades of SUMIKAEXCEL PES in automotive parts

Automotive Lamp Components

SUMIKAEXCEL 4100G has been used for automotive lamp components such as reflectors because of its low outgassing at high temperatures, in addition to its excellent heat resistance and dimensional stability.

Figure 6-2-2 Lamp Reflector

Oil Control Valve

SUMIPLOY CS5530 has the nature of extremely high dimensional stability, and its injection molded products can achieve dimensional accuracy almost equal to that of machined aluminum alloy products. Taking advantage of this property, SUMIPLOY CS5530 is applied to sprues of oil control valves.

Figure 6-2-3 Sprue of Oil Control Valves