Is it possible to reduce the hardness of the Automotive Wiring Harness Protection Sleeve product if it is too high?

Manufacturers of Automotive Wiring Harness Protection Sleeve have all encountered that the hardness of the Automotive Wiring Harness Protection Sleeve may be increased due to a small mistake during production, which affects the quality of the product, causes waste of materials, and increases the cost of production? So how can we reduce its hardness and reach the product's target? According to the analysis of Automotive Wiring Harness Protection Sleeve manufacturers, the hardness of the finished Automotive Wiring Harness Protection Sleeve cannot be changed, but for the vulcanized Cable Sleeve. There are several ways to reduce its hardness:

1. If the production cost is not considered, the amount of oil can be increased and the amount of carbon black can be reduced. If it is a basic Cable Sleeve material that has not been produced, it is necessary to increase the amount of oil in the formula.
Second, look at the material of the Automotive Wiring Harness Protection Sleeve product, so that it can continue to vulcanize until it is overvulcanized. Although this method can reduce the hardness, the performance and quality of the product cannot be guaranteed to be perfect.
3. Use an oven to vulcanize the surface product back to the original, so as to achieve the purpose of reducing the hardness, but the desired degree index cannot be achieved.
In short: the hardness of the Automotive Wiring Harness Protection Sleeve is high. First of all, it is necessary to check which link has the problem to prevent the problem from recurring. Although the above three methods can reduce the hardness to a certain extent, they all have their drawbacks.