This term refers to an index named after Albert Ferdinand Shore, which is a measure of the elasticity and hardness of materials such as rubber and plastics.
It is measured using a durometer, which presses a spring-loaded pin into the surface of the material. The Shore hardness is specified in different scales, with Shore A being used for softer materials and Shore D for harder materials.
The measured value ranges from 0 (very soft) to 100 (very hard). The higher the value, the harder the material. The Shore hardness is important for the selection of materials in applications where certain elasticity and hardness properties are required.
Further information can be found in the following standards: DIN ISO 7619-1, DIN EN ISO 868, DIN 53505 and ASTM D 2240.

Shore Hardness in Injection Molding


Quality: Differences between the Shore A and Shore D measurement methods


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This glossary of plastic industry is provided by PLEXPERT Canada Inc.