What is the reason for the honeycomb holes on the surface of the Automotive Wiring Harness Protection Sleeve?

Generally, when producing Automotive Wiring Harness Protection Sleeve, there will be a process of starting up and adjusting the mold. This process is mainly to ensure the product quality of Automotive Wiring Harness Protection Sleeve. However, some customers always feel that it is unreasonable for us to charge them the start-up fee when ordering the Automotive Wiring Harness Protection Sleeve. In fact, the manufacturer of the Automotive Wiring Harness Protection Sleeve charges the start-up fee because the process of starting the mold and adjusting the mold is a waste of material, so the manufacturer will treat the customer. The start-up fee is charged to carry out the start-up mold adjustment to ensure the quality of the product, because the surface of the Automotive Wiring Harness Protection Sleeve produced without the mold adjustment process generally has honeycomb holes, so what causes these honeycomb holes.

First of all, there are generally the following reasons for the rough surface, cracks and honeycomb holes of the Automotive Wiring Harness Protection Sleeve:
1. It may be insufficient sulfur pressure.
2. The curing time is not enough.
3. The amount of glue in the Cable Sleeve is insufficient.
Secondly, how to solve the above problems:
1. Insufficient sulfur pressure: You can try to press and exhaust several times.
2. The vulcanization time is not enough: the vulcanization time can be increased appropriately.
3. The amount of glue in the Cable Sleeve is insufficient: increase the weight of the glue.
In short: the above three reasons are the honeycomb holes on the surface of the Automotive Wiring Harness Protection Sleeve products. I hope it will be helpful to everyone. In addition, there are "honeycomb holes" on the surface of the Automotive Wiring Harness Protection Sleeve products. It is recommended to cut open the Automotive Wiring Harness Protection Sleeve to see the rubber. Does it contain moisture or pores? If there is an explanation, it may be insufficient pressure due to lack of glue. If not, consider whether the mold temperature is too high and the surface is scalded. At the same time, more professional people are welcome to call to discuss industry knowledge.