Rubber Hardness Measurement

To evaluate elastomers quality vulcanisation ratio or even the wear resistance it is necessary to check the hardness.

Rubber hardness measurement.

Named after its inventor albert ferdinand shore shore hardness offers different scales for measuring the solidity of different materials shore was born in 1876 and lived until 1936 creating the shore scale in the 1920s. High quality foam rubber hardness shore durometer measurement 2 5 mm needle stroke dial from china china s leading digital rubber hardness tester product with strict quality control durometer hardness unit factories producing high quality durometer hardness unit products. Durometer is a dimensionless quantity and there is no simple relationship between a material s durometer in one scale and its durometer in any other scale or by any other hardness test. What shore hardness means to you as a mold maker.

So i sent him photographs that showed different ways of holding a durometer and using it to measure the hardness of a rubber roll. This comparison guide will provide an overview of the different scales that can be used. There are special tools to position the measuring needle exactly in the middle. Measuring by pressing manually onto a rubber part in order to feel its resistance can seam.

The irhd m measurement is particularly common for measurements on o rings. The rubber durometer chart below gives you an idea of the rubber hardness that you want for your application. Generally most rubber materials fall under the rubber durometer scale of shore a. The most commonly used method is the shore a measurement.

But if the hardness is 10 sh or 90 sh the results are not to be trusted. A durometer scale is a type of measurement for rubber material hardness. In order to measure hardness a rubber hardness scale is used. Once the gauge is pressed firmly against the material and the needle has penetrated as far as it can go the measurement needle will indicate the corresponding hardness measurement.

Thus if you need a rubber or o ring durometer that feels like a running shoe. The measurement must be redone with adjacent scale type. Shore durometer hardness is a measure of the resistance a material has to indentation. The hardness has a direct impact on the stiffness of a part ultimately affecting how a component will perform in an application.

Otherwise deviations can easily occur on a convex surface. Determining the shore a hardness of rubber.