Name of the
elastomer

Normalized designation

S.E.E designation

NATURAL RUBBER

NR

CN

POYURETHANES POLYESTER

AU
EU

UR

POLYISOPRENE RUBBER

IR

CN

METHYLE VINYLE SILICONE

MVQ

SL

POLYBUTADIENE RUBBER

BR

BU

SILICONE PHENYLE METHYLE VINYLE

PVMQ

SL

STYRENE-BUTADIENNE RUBBER

SBR

SB

PHENYLE VINYLE METHYLE SILICONE

FVMQ

SF

ISOPRENE-ISOBUTADIENE RUBBER

IIR

BU

FLUOROCARBONE COPOLYMERE

FPM

DF

CHLOROPRENE RUBBER

CR

NE

ACRYLIQUE ETHYNE COPOLYMERE

AEM

DA

NITRILE-ACRYLIQUE BUTADIENE RUBBER

NBR

NA NB
NC ND

ACRYLATE ETHYL COPOLYMERE

ACM

DA

HYDROGENATED NITRILE

HNBR

ND

CHLORE POLYETHYLENE

CM

DI

ETHYLENE-PROPYLEME-
DIENE TERPOLYMERE

EPDM

EP

ETHYLENE ACETATE OF VINYL

EVM

DI