Sometimes when we make injection parts, we can find some parts have mixed color, why this happens?

The reason may be as below:

1. plastic material is mixed with master color or toner.
2. plastic material was decomposed and carbonized.
3. it was polluted when adding material or changing material
4. the material itself is not pure, has mixed material other material

Green Vitality has rich experience in making plastic injection molds and molding parts, we know how to avoid or improve the  welcome your contact!