Application: shore A is designed to measure the penetration hardness of rubber, elastomers and other rubber like substances such as neoprene, silicone, and vinyl. It can also be used for soft plastics, felt, leather and similar materials. Shore D is designed for plastics, Formica, Epoxies and Plexiglass. Model: HT6510A HT6510D Product info: digital durometer for shore hardness testing pocket size ...