Performance Comparison

Elastomer Type Relative Importance Castable 8011 6007 6005 Millable Gum* 5004 EPDM Nitrile Nitrile/PVC Neoprene Rubber Natural Rubber Hypalon
Stability of hardness in solvents (resistance to extraction) 5 5 5 4 3 2 4 4 4 4
Swell resistance in nonpolar solvents (oils) 5 5 5 1 4 4 3 1 1 3
Ink pickup 5 5 5 2 5 4 4 2 2 3
Tear and abrasion resistance 4 5 4 2 2 2 3 2 3 3
Low heat buildup at high operating speeds 4 3 3 3 2 1 3 1 5 2
Swell resistance in polar solvents (eg. ultraviolet inks) 3 2 3 5 1 1 2 5 5 2
Performance Index 113 112 70 79 65 85 62 82 76
Scaled Performance Index (100=best) 100 99 62 70 58 75 55 73 67