Compared with other materials, plastic has the following characteristics
<1> Chemical Resistance
<2> glossy, partially transparent or translucent
<3> Mostly good insulators
<4> light and strong
<5> Easy to mass produce, cheap
<6> Wide range of uses, multiple functions, easy coloring, high temperature resistance
Plastics are also divided into general-purpose plastics and engineering plastics, which are mainly defined by the versatility of uses. For example, PE and PP are inexpensive and can be produced on many different types of machines. Engineering plastics are more expensive, but the stability of raw materials and physical properties are much better. In general, they have both rigid and tough properties.