SHORE A AND SHORE D HARDNESS TESTERThe Shore Hardness is defined as the resistance to penetration by an indentor of specified shape under adefined load.Shore Hardness tester are available in various models for testing Vulcanized Rubber, Plastic, Ebonite, Fibre andall other soft and Hard Elastomers as per latest American Std ASTM-D 2240 and German Std DIN 53505.Shore A are suited for use on soft elastomers the hardness of which is between 10 and 90 Shore A. Shore Dare suited for use on harder elastomer hardness 80 Shore A and on plastics the hardness of which isbetween 30 and 90 Shore D.