How to increase the hardness and test hardness of the Automotive Wiring Harness Protection Sleeve?

If the hardness of the Automotive Wiring Harness Protection Sleeve is not enough, how can we increase the hardness of the Automotive Wiring Harness Protection Sleeve and test the hardness of the Automotive Wiring Harness Protection Sleeve? First of all, because the main components of the automotive wire harness protective cover are vinyl and hydrogen-containing silicone oil, the vinyl content and the hydrogen content of hydrogen-containing silicone oil can be appropriately increased during production, and some silica and fineness can be added. At the same time, wollastonite powder can also be added to increase the hardness, but it should be determined according to the needs of customers.

Secondly, there are three hardness test methods for Automotive Wiring Harness Protection Sleeve, namely: Shore hardness test method, Shore hardness test method and Rockwell hardness test method.
Shore hardness test method: It is a dynamic force test, which is essentially different from other static force test methods. It is mainly suitable for determining the Shore hardness value of ferrous and non-ferrous metals. The Shore hardness tester is easy to carry, especially suitable for medium and large workpieces in metallurgy and heavy machinery industries, such as large components, castings, forgings, crankshafts, rolls, oversized gears, machine tool guide rails and other workpieces.
Shore hardness test method: refers to the reading of the value measured by the Shore hardness tester. Its unit is "degree". The description method is divided into two types, A and C, which represent different hardness ranges. Therefore, generally speaking, for a rubber or plastic product, during the test, the tester can decide whether to use the Shore A durometer or the Shore C durometer to test according to whether the car wiring harness is protective.
Rockwell hardness test method: use a diamond cone with a vertex angle of 120 degrees or a steel ball with a diameter of 1.59mm/3.18mm to press into the surface of the tested material under a certain load, and obtain the hardness of the material from the indentation depth.