Rubber Durometer Scale

Measure the hardness of flat materials such as plastic rubber and laminate.

Rubber durometer scale.

A chart showing general hardness comparisons is below. Generally most rubber materials fall under the rubber durometer scale of shore a. Shore who developed a measurement device called a durometer in the 1920s. The rubber durometer chart below gives you an idea of the rubber hardness that you want for your application.

A durometer scale also called a shore hardness scale and rubber hardness scale was created so people can have a point of reference to compare different materials such as soft rubbers rigid plastics gels and other non metallic materials. Durometer shore hardness scale. For example you would not choose a rubber with a durometer of 70a to make a mold of a plaster standing. Here are a few examples of hardness based on durometer scale.

The shore durometer is a device for measuring the hardness of a material typically of polymers elastomers and rubbers. Hardness may be defined as a material s resistance to permanent indentation. Style 2 testers have a narrow base for access to confined areas. Hardness is an important consideration in sealing materials.

Higher numbers on the scale indicate a greater resistance to indentation and thus harder materials. They can be held in your hand or mounted to a stand with the included knob. For more information about durometer scales please see the bottom of about rubber. Understanding shore s durometer hardness scale can create a world of difference when picking out material as the ratings will always tell you how hard flexible and resilient each rubber is.

This information is provided as a selection guide only. Shore durometer is a scale used industry wide to measure the hardness of rubber and plastic materials. As time progressed multiple durometer scales were created. Originally the result was just signified by a number for example 50 durometer.

Lower numbers indicate less resistance and softer materials. Shore in the 1920 s. The shore durometer scale was created by albert f. Remember that the higher the rating the harder and less pliable the rubber material will be compared to elastomers with a lower durometer rating.

Style 1 testers can be held in your hand or mounted to a stand with the included knob. Approximate durometer hardness comparisons the values listed are approximate and are not to be used as an exact equivalent. The shore durometer scales that are most commonly used in plastics rubber and silicone are the a d and 00 shore scales. These scales were invented so that people can discuss these materials and have a common point of reference.

Durometer measures the hardness in polymers elastomers and rubbers. There are different shore hardness scales for measuring the hardness of different materials. Thus if you need a rubber or o ring durometer that feels like a running shoe sole review our rubber hardness chart below then pick shore 70a.