The reasons for the foaming of silicone electronic wire can be summarized as follows:

1. The conductor is damp or the surface is oily

2. the vulcanization temperature is too high

3. The distance between the die head and the first guide wheel is too close or the temperature is too low.

4. the extrusion force is small

5. the outer layer of the shield

6. too much filler

7. the rubber has foreign matter

8. rubber quality