Definition - What does Durometer mean?
A durometer is a measurement instrument used to determine the surface hardness of a material. They are used to determine the hardness of a variety of materials such as rubber, coatings and plastics.
Corrosionpedia explains Durometer
Durometers use two main scale systems to describe the hardness of a material: Shore A and Shore D. The material's hardness is determined by measuring its resistance to the indentation of a needle applied with a force.
Shore A refers to the hardness scale used to measure the degree of hardness of flexible rubbers and plastics ranging from very soft to semi-rigid. Shore D refers to the hardness scale used to measure the degree of hardness of semi-rigid and hard plastics.