特性：

1、优良的机械性能，机械强度高，耐疲劳性和尺寸稳定性好，蠕变也小，这些性能在高温条件下也极少有变化。

2、耐热老化性优异，增强后的UL温度指数达120°-140°，此外，户外长期老化性也很好

3，耐溶剂性好，无应力开裂。

4、PBT遇水易分解，在高温、高湿环境下使用需谨慎。

5、优良的电气性能，体积电阻率及介电强度高，耐电弧性优异，吸湿性极小，在潮湿及高温环境下，也能保持电性能稳定，是制造电子、电气零件的理想材料。、

6、易成型加工和二次加工，易用普通设备注塑或挤塑。由于结晶速度快，流动性好，模具温度也比其他工程塑料要求低，在加工薄壁制件时，仅需几秒钟，对大部件也只要40-60秒即可。

 PBT Crastin B4300G4

Product Description:

Ultradur B 4300 G4 is an easy flowing injection molding PBT with 20% glass fiber reinforcement for rigid, tough, and dimensionally stable parts.

Applications
Typical applications include car door handles, housings for small electric motors, headlight retainers and drum controllers.

• General
  Material Status	Commercial: Active
  Availability	Asia PacificEuropeNorth America
  Filler / Reinforcement	Glass Fiber, 20% Filler by Weight
  Features	Good Dimensional StabilityGood FlowGood RigidityGood Toughness
  Uses	Automotive ApplicationsElectric Motor HousingsHandles
  Agency Ratings	EC 1907/2006 (REACH)
  RoHS Compliance	RoHS Compliant
  Forms	Pellets
  Processing Method	Injection Molding
  Multi-Point Data	Creep Modulus vs. Time (ISO 11403-1)Isochronous Stress vs. Strain (ISO 11403-1)Isothermal Stress vs. Strain (ISO 11403-1)Secant Modulus vs. Strain (ISO 11403-1)Viscosity vs. Shear Rate (ISO 11403-2)