BUTYL RUBBER (IIR)

GENERAL TEMPERATURE RANGE:

-50° to +250°F

PERFORMS WELL IN:

hot water / steam, silicone fluids and greases

PERFORMS POORLY IN:

mineral oil and grease, hydrocarbon oil and fuel

COST:

moderate

CHLOROPRENE (CR)

GENERAL TEMPERATURE RANGE:

-40° to +250°F

PERFORMS WELL IN:

high aniline point petroleum oils, silicone oils and greases

PERFORMS POORLY IN:

hydrocarbons, ketones

COST:

moderate

CHLOROSULFONATED POLYETHYLENE (CSM)

GENERAL TEMPERATURE RANGE:

-20° to +250°F

PERFORMS WELL IN:

acids, alkalies

PERFORMS POORLY IN:

aldehydes, esters

COST:

moderate

EPICHLOROHYDRIN (ECO)

GENERAL TEMPERATURE RANGE:

-55° to +275°F

PERFORMS WELL IN:

aliphatic hydrocarbons, mineral oil and greases

PERFORMS POORLY IN:

aldehydes, brake fluids

COST:

moderate

ETHYLENE ACRYLIC (AEM)

GENERAL TEMPERATURE RANGE:

-40° to +300°F

PERFORMS WELL IN:

alkalies, dilute acids

PERFORMS POORLY IN:

aromatic hydrocarbons, brake fluids

COST:

moderate

ETHYLENE PROPYLENE (EPDM)

GENERAL TEMPERATURE RANGE:

-65° to +300°F

PERFORMS WELL IN:

alcohols, brake fluids

PERFORMS POORLY IN:

aliphatic and aromatic hydrocarbons, di-ester based lubricants

COST:

low

FLUOROCARBON (FKM)

GENERAL TEMPERATURE RANGE:

-15° to +400°F

PERFORMS WELL IN:

acids, gasoline

PERFORMS POORLY IN:

amines, ketones

COST:

high

FLUOROSILICONE (FVMQ)

GENERAL TEMPERATURE RANGE:

-70° to +350°F

PERFORMS WELL IN:

hot air, aromatic hydrocarbon

PERFORMS POORLY IN:

brake fluids, hydrazine

COST:

high

HYDROGENATED NITRILE (HNBR)

GENERAL TEMPERATURE RANGE:

-25° to +300°F

PERFORMS WELL IN:

automotive and oilfield applications

PERFORMS POORLY IN:

esters, ethers, chlorinated hydrocarbons

COST:

high

NATURAL RUBBER (NR)

GENERAL TEMPERATURE RANGE:

-60° to +220°F

PERFORMS WELL IN:

alcohols, organic acids

PERFORMS POORLY IN:

aromatic, aliphatic or halogenated hydrocarbons, ozone

COST:

low

NITRILE (NBR)

GENERAL TEMPERATURE RANGE:

-40° to +225°F

PERFORMS WELL IN:

petroleum oils and fuels, silicone oils and greases

PERFORMS POORLY IN:

aromatic hydrocarbons, brake fluids

COST:

low

PERFLUOROELASTOMER (FFKM)

GENERAL TEMPERATURE RANGE:

-25° to +575°F

PERFORMS WELL IN:

most chemicals and petrochemicals

PERFORMS POORLY IN:

uranium hexafluoride, some fluorinated solvents

COST:

very high

POLYACRYLATE (ACM)

GENERAL TEMPERATURE RANGE:

0° to +350°F

PERFORMS WELL IN:

automatic transmission fluid, hot oils

PERFORMS POORLY IN:

alcohol, alkalies

COST:

medium

POLYURETHANE (AU)

GENERAL TEMPERATURE RANGE:

-65° to +225°F

ADVANTAGES:

toughness, extrusion resistance, abrasion resistance

APPLICATIONS:

hydraulic sealing applications, pneumatic applications

COST:

medium

SILICONE (VMQ)

GENERAL TEMPERATURE RANGE:

-65° to +450°F

PERFORMS WELL IN:

engine and transmission oils, ozone

PERFORMS POORLY IN:

petroleum oils and fuels, ketones

COST:

medium

STYRENE BUTADIENE (SBR)

GENERAL TEMPERATURE RANGE:

-50° to +212°F

PERFORMS WELL IN:

water, alcohol

PERFORMS POORLY IN:

petroleum oils and fuels, strong acids

COST:

low

TETRAFLUOROETHYLENE (FEP)

GENERAL TEMPERATURE RANGE:

-300° to +500°F

COST:

high

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TETRAFLUOROETHYLENE PROPYLENE (FEPM)

GENERAL TEMPERATURE RANGE:

0° to +400°F

COST:

high