Rubber Hardness Table

Several batches of tires typically form with different grades of hardness within the same batch due to varying pounds and measures of the chemicals added to the mix.

Rubber hardness table.

Generally most rubber materials fall under the rubber durometer scale of shore a. A vital sponge characteristic is the level of hardness of it. Durometer conversion chart mechanical rubber approximate hardness value to be used as a guide type extra soft soft chewing gum medium soft pencil eraser medium hard windshield wiper blade hard skate wheel extra hard bowling ball shore a rubber soft plastic polyurethane 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100. Tires are manufactured in a rubber plant and the process consists of mixing a variety of chemicals into a large rubber block mold.

Lower numbers indicate less resistance and softer materials. Buy ping pong rackets and paddles online. The shore 00 hardness scale measures rubbers and gels that are very soft. The durometer scale was defined by albert f.

The shore durometer is a device for measuring the hardness of a material typically of polymers elastomers and rubbers. A rubber durometer of shore 70a is the most commonly chosen material hardness for all applications. The harder the sponge is the more speed it will give. Hardness may be defined as a material s resistance to permanent indentation.

Shore a medium range shore d very hard range and shore oo very soft range. The below chart shows the durometer of many common items so if a durometer guage is not available please use this as a guide. A chart showing general hardness comparisons is below. While other scales exist there are three commonly used shore scales in the rubber and plastics industry.

Rubbers by highest sponge hardness rating view users ratings and reviews of table tennis equipment to compare products and find the right rubber blade or racket to fit your playing style. The rubber durometer chart is a scale of measuring the hardness of a rubber material developed by albert shore in the 1920s. The shore a hardness scale measures the hardness of flexible mold rubbers that range in hardness from very soft and flexible to medium and somewhat flexible to hard with almost no flexibility at. Higher numbers on the scale indicate a greater resistance to indentation and thus harder materials.

Add your own rating. Durometer measures the hardness in polymers elastomers and rubbers. This website is driven by the ping pong community worldwide. 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.

Shore who developed a measurement device called a durometer in the 1920s. The durometer hardness specifically measures an elastomer s resistance to indentation.