Technical Data Sheet Harkness Industries MP 950 Polyurethane Composition MP 950 is a high performance polyether based urethane formulated to give an excellent balance of properties including tear and abrasion resistance low heat build-up good resilience hydrolysis resistance and hardness stability. MP 950 may be selected for a wide variety of applications including springs scraper blades material handling equipment rolls shock absorbers bumpers chute liners wheels tires and many more. Physical Properties Shore A Hardness . 95 - 5 100 Modulus psi Mpa 1800 12.4 300 Modulus psi Mpa 4000 27.6 Tensile psi Mpa . 5500 37.9 Elongation 320 Tear Strength Split ASTM D-470 pli kNm .. 150 26.2 Tear Strength Die C ASTM D-624 pli kNm 450 78.3 Bashore Rebound . 40 Compression Set 40 22 hours 158F 70C Method B Bell Brittle Point F C .. - 80 -63 Abrasion Resistance NBS Index ..... 300 Specific Gravity . 1.14
