Why does the Automotive Wiring Harness Protection Sleeve an unpleasant smell after being used for a period of time?

Why does the Automotive Wiring Harness Protection Sleeve emit an unpleasant smell after being used for a period of time? Will the irritating smell be toxic? Isn`t the Automotive Wiring Harness Protection Sleeve an environmentally friendly raw material? Why do things made of environmentally friendly raw materials still have a pungent smell? The following editor will take everyone to discuss the reasons:

First of all, in order to save costs, manufacturers use non-environmentally friendly and cheap ordinary Cable Sleeve instead of environmentally friendly and odorless Cable Sleeve that can pass ROHS testing. The Cable Sleeve is a catalyst that promotes the vulcanization of the raw material of the automotive wire harness protective sleeve. The Cable Sleeve will volatilize after the Automotive Wiring Harness Protection Sleeve is formed, and only a small part will remain. Generally, it will evaporate within 48 hours. The Cable Sleeve will not cause harm to the human body, but the cheap Cable Sleeve will produce a burnt and pungent smell, and the volatilization time is about one month, so the product will emit an unpleasant smell after a period of use.
Secondly, there is basically no strong smell in the Automotive Wiring Harness Protection Sleeve, but it is not ruled out that some manufacturers use inferior raw materials for the Automotive Wiring Harness Protection Sleeve, which causes the smell to emit with high temperature. In addition, the vulcanization conditions are also one of the main sources of the smell of the Automotive Wiring Harness Protection Sleeve. Excessively high vulcanization temperature or too long vulcanization time during production will cause the product to age easily and increase the smell.
In short, the Automotive Wiring Harness Protection Sleeve itself has no smell. If there is a smell, it may be that relatively inferior raw materials of the Automotive Wiring Harness Protection Sleeve and inferior Cable Sleeve are used. Therefore, when you purchase a Automotive Wiring Harness Protection Sleeve, you must first look at the wear resistance, elasticity, tear strength and odor of the Automotive Wiring Harness Protection Sleeve to ensure product quality!