Material Selection Chart
Base elastomer NR IR SBR IIR BR EPDM CR NBR PU SI CSM AC FL
Max temperature 212 212 225 250 212 300 250 250 250 550 250 350 350
Min temperature -60 -60 -60 -50 -80 -60 -40 -60 -65 -160 -40 -20 -20
Max tensile (psi) 4000 4000 3500 3000 3000 3000 4000 4000 8000 1500 2800 2200 2400
Max elongation % 700 750 700 700 700 300 600 600 700 800 500 400 350
Compression set G F G F F F G G E VG G G VG
Resilience O O G F O G E G VG G G G F
Abrasion resist E E E VG E VG E E O P E G G
Flame resist VP VP VP VP VP VP G P P G G P E
Weather resist F F F VG F E VG F E E E VG E
Ozone resist VP VP VP E VP O E VP E E O E O
Water swell G E E E E E G E F VG 3 F 4
Acid resist G G G E G VG G G P F E F VG
Gasoline resist VP VP VP VP VP VP G E E P F E E
Oil resist VP VP VP VP VP VP G VG VG P-VG G E O
Synthetic lubricant

(Diesters)

 P P VP F P P VP G VP P VP G G
Hydraulic Fld.

(silicate)

 VP VP P F VP G G F NK VP G G G
Hydraulic Fld.

(phosphate)

 P P VP G P VG VP VP VP G P VP VP
Bond rating E E E VG E VP-G VG VG G VG G G F

 

NR-Natural Rubber IR-Synthetic Polyisoprene SBR-Styrene Butadiene IIR-Butyl BR-Polybutadiene EPDM-Ethylene Propylene CR-Chloroprene/Neoprene NBR-Nitrile PU-Urethane SI-Silicone CSM-Hypalon AC-Acrylic FL-Fluoroelastomers (Viton)

Ratings: VP-very poor P-poor F-fair G-good VG-very good

E-excellent 0-outstanding

 
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