Rubber O-Ring Materials | Rubber O-Ring Chart

Rubber O-Ring Materials

Seal & Design offers o-rings in a wide variety of materials. Below is a chart of our most popular materials. Click on the ASTM name to see more detailed information about that o-ring material or compound. If you need help deciding on which material you want to use, please contact us and we'll get you started.

Rubber Compounds

ASTM Elastomer Temp. Range Datasheet
ACM Polyacrylate -5°C / -21°F to 350°C / 177°F ACM PDF
AU / EU Polyurethane -40°C / -40°F to 82°C / 180°F AU EU PDF
CR Neoprene® -45°C / -49°F to 135°C / 275°F CR PDF
CSM Hypalon -29°C / -20°F to 121°C / 250°F CSM PDF
FEPM Aflas® -40°C / -40°F to 120°C / 240°F FEPM PDF
EPDM Ethylene Propylene -54°C / -65.2°F to 150°C / 302°F EPDM PDF
FKM Viton® -25°C / -13°F to 204°C / 399°F FKM PDF
FFKM Perfluoroelastomer
(Chemraz, Kalrez, Simriz, Perlast, GPlast)
-15°C / -5°F to 300°C / 572°F FFKM PDF
NBR / HNBR Nitrile -55°C / -67°F to 120°C / 248°F NBR PDF
VMQ Silicone -55°C / -67°F to 230°C / 446°F VMQ PDF
FVMQ Fluorocilicone -55°C / -67°F to 200°C / 392°F FVMQ PDF
SBR Stryrene-Butadiene -70°C / -57°F to 107°C / 225°F SBR PDF

The following key is used throughout this website to identify the compounds on various informational charts:

N Nitrile E EPDM C Neoprene G SBR S Silicone B Butyl  
O Polyacrylate H Hypalon V Viton P Polyurethane F Fluorosilicone A Aflas K Chemraz