| Material |
Chemical
Group |
Generally
Resistant To |
Generally
Attacked By |
| Natural
Rubber, Isoprene |
Polyisoprene |
Most
moderate wet or dry chemicals, organic acids, alcohols, ketones,
aldehydes |
Ozone,
strong acids, fats, oils, greases, most hydrocarbons |
| Butadiene,
Styrene Butadiene |
Styrene,
Butadiene Copolymer, Polybutadiene |
Similar
to natural rubber |
Ozone,
strong acids, fats, oils, greases, most hydrocarbons |
| Butyl |
Isobutylene,
Isoprene, Polymer |
Water
and steam |
Petroleum
solvents, coal, tar, solvents, aromatic hydrocarbons |
| Ethylene
Propylene |
Ethylene
Propylene Copolymer and Terpolymer |
Water,
steam and brake fluids |
Mineral
oils and solvents, aromatic hydrocarbons |
| Nitrile |
Butadiene,
Acrylonitrile Copolymer |
Many
hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals |
Ozone,
ketones, esters, aldehydes, chlorinated and nitro hydrocarbons |
Hydrogenated
Nitrile |
Butadiene,
Acrylonitrile Copolymer |
Similar
to NBR but with improved chemical resistance and higher service
temperature |
Ozone,
ketones, esters, aldehydes, chlorinated and nitro hydrocarbons |
| Epichlorohydrin |
Epichlorohydrin
polymer and copolymer |
Similar
to nitrile with
ozone resistance |
Ketones,
esters, aldehydes, chlorinated and nitro hydrocarbons |
| Neoprene |
Chloroprene
Polymer |
Moderate
chemicals and acids, ozone, oils, fats, greases, many oils, and
solvents |
Strong
oxidizing acids, esters, ketones, chlorinated, aromatic and nitro
hydrocarbons |
| Hypalon® |
Chlorosulfonated
Polyethylene with improved acid and ozone resistance |
Similar
to Neoprene |
Concentrated
oxidizing acids, esters, ketones, chlorinated, aromatic and nitro
hydrocarbons |
| Tyrin® |
Chlorinated
Polyethylene |
Similar
to Neoprene with improved acid and ozone resistance |
Concentrated
oxidizing acids, esters, ketones, chlorinated, aromatic and nitro
hydrocarbons |
| Urethane |
Urethane
Polymer |
Ozone,
hydrocarbons, moderate chemicals, fats, oils, greases |
Concentrated
acids, ketones, esters, chlorinated and nitro hydrocarbons |
| Polysulfide |
Organic
Polysulfide Polymer |
Ozone,
oils, solvents, thinners, ketones, esters, aromatic hydrocarbons |
Mercaptons,
chlorinated hydrocarbons, nitro hydrocarbons, ethers, amines, hetercocyclics |
| Silicone |
Organic
Silicone Polymer |
Moderate
or oxidizing chemicals, ozone, concentrated sodium hydroxide |
Many
solvents, oils, concentrated acids, dilute sodium hydroxide |
| Fluorosilicone |
Fluorinated
Organic Silicone Polymer |
Moderate
or oxidizing chemicals, ozone, aromatic chlorinated solvents, bases |
Brake
fluids, hydrazine, ketones |
| Tetrafluoro
ethylene/ Propylene |
Fluorinated
Copolymer |
Steam,
amines and amine corrosion inhibitors, caustics, high pH media,
wet sour gas, oil |
Aromatic
hydrocarbons, chlorinated solvents, ethers, limited in low temperatures |
| Polyacrylate |
Copolymer
of Acrylic Ester and Acrylic Halide |
Ozone,
extreme pressure, lubricants, hot oils, petroleum solvents, animal
and vegetable fats |
Water,
alcohols, glycols alkali, esters, aromatic hydrocarbons, halogenated
hydrocarbons, phenol |
| Fluoroelastomer |
Standard
Fluorocarbon Dipolymer 66% Fluorine |
All
aliphatic, aromatic and halogenated hydrocarbons, acids, animal
and vegetable oils |
Ketones,
low molecular weight esters and alcohols and nitro-containing compounds |
| Fluoroelastomer |
Standard
or specialty type Fluorocarbon. Typically, >66% fluorine |
Same
as FKM#2. Greater chemical resistance |
Ketones,
low molecular weight esters and nitro-containing compounds |
| Perfluoroelastomer |
Fully
Fluorinated Fluorocarbon |
Best
fluid resistance of any elastomer |
Fluorocarbon-containing
refrigerants cause minor effects |
