Rubber Durometer Scale

A chart showing general hardness comparisons is below.

Rubber durometer scale.

Hardness is an important consideration in sealing materials. This information is provided as a selection guide only. Style 2 testers have a narrow base for access to confined areas. Remember that the higher the rating the harder and less pliable the rubber material will be compared to elastomers with a lower durometer rating.

The shore durometer is a device for measuring the hardness of a material typically of polymers elastomers and rubbers. For more information about durometer scales please see the bottom of about rubber. Here are a few examples of hardness based on durometer scale. The rubber durometer chart below gives you an idea of the rubber hardness that you want for your application.

Approximate durometer hardness comparisons the values listed are approximate and are not to be used as an exact equivalent. Measure the hardness of flat materials such as plastic rubber and laminate. Shore durometer is a scale used industry wide to measure the hardness of rubber and plastic materials. Lower numbers indicate less resistance and softer materials.

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. For example you would not choose a rubber with a durometer of 70a to make a mold of a plaster standing. Shore who developed a measurement device called a durometer in the 1920s. The shore durometer scale was created by albert f.

Durometer measures the hardness in polymers elastomers and rubbers. Hardness may be defined as a material s resistance to permanent indentation. Durometer shore hardness scale. 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. Originally the result was just signified by a number for example 50 durometer. Generally most rubber materials fall under the rubber durometer scale of shore a. The durometer scale was defined by albert f.

When selecting rubber sheet there are various thicknesses and lengths but also varying hardnesses. As time progressed multiple durometer scales were created. Rubber band 30 shore a inner tube 55 shore a rubber tire 65 shore a rubber shoe heel 70. 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.

Style 1 testers can be held in your hand or mounted to a stand with the included knob. There are different shore hardness scales for measuring the hardness of different materials. They can be held in your hand or mounted to a stand with the included knob.