How to distinguish the quality of the Automotive Wiring Harness Protection Sleeve

Why does the Automotive Wiring Harness Protection Sleeve have a white layer on the surface after it encounters water, and will the mildew of the Automotive Wiring Harness Protection Sleeve affect its service life.

First of all, good-quality Automotive Wiring Harness Protection Sleeve will not be moldy, unless the Automotive Wiring Harness Protection Sleeve manufacturers add other inferior materials in order to reduce the unit price, and use cheap vulcanizing agents to make the Automotive Wiring Harness Protection Sleeve itself. If the quality is not good, the hose will become moldy when it meets water.
Otherwise, it is not a big problem for the car wiring harness protective sleeve to encounter water, and it also has a certain tolerance to weak acid and weak alkali, unless it encounters strong acid and strong alkali, it will corrode the hose and affect the life.
In addition, the Automotive Wiring Harness Protection Sleeve will become moldy when exposed to water. There is also a possibility that the secondary vulcanization is insufficient after production, resulting in the precipitation of some vulcanized substances inside. We thought it was mold in the hose.
1) Try elasticity
The Cable Sleeve has better elasticity, but the Cable Sleeve is relatively fragile. When choosing, you can try the elasticity first. If the elasticity is good, it may be rubber; if the elasticity is not very good, it may be the Cable Sleeve.
2) Look at the color
Due to the high content of impurities, the Cable Sleeve cannot be made into a transparent product, but the Cable Sleeve is colorless and transparent. To make transparent silicone rubber products, the raw material of the Cable Sleeve must be used.
3) Smell
The Automotive Wiring Harness Protection Sleeve has a strong smell, and it will smell pungent when you smell it. Some manufacturers add fragrance to cover up the smell, so it is much better to choose the material of the Cable Sleeve.