Material Specifications

Learn About the Physical Properties of Rubber

Download Caltrans Specifications
Download Caltrans Test Report Samples
AASHTO Specifications
Expansion Joint Filler / Gym Mat
Durometer is the international standard for measuring the hardness of rubber, sponge rubber, plastic, and other nonmetallic materials.

The chart offered is to help you make general comparisons between rubbers.

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40-80 Duro Commercial Neoprene Physical Properties.
Rubber Physical Properties