EXCELLENT

VERY GOOD

GOOD

FAIR

POOR

COMMON NAME EPDM OR EP RUBBER NEOPRENE NBR OR BUNA NATURAL RUBBERS BUTYL SILICONE FLOUROSILICONE FLOUROCARBON
CHEMICAL NAME Ethylene propylene Chloroprene Acrylonitrile Butadiene Natural Isoprene Isobutylene Isoprene Silicone Flourosilicone Flourocarbon
SAE-200 BA,CA,DA BC,BE BF,BG,BK AA AA FC,FE,GE __ HK
ASTM DESIGNATION EP CR NBR NR IIR VMQ FVMQ FKM
(D 1418)
PHYSICAL PROPERTIES
Tensile Strengh (psi) >2000 >2000 >2000 >2000 >2000 >1200 >1200 >1400
Hardnes Range 40-80 20-80 40-80 50-70 40-75 40-80 40-70 70-90
Tear Resistence
Abrasion Resistance
Compresion Set
Resilience Cold
Resilience hot
Radiation Resistance
Impermiability To Gases
Elongation
ACID RESISTANCE
Mild Dilute
Strong Concentrate
SOLVENT RESISTSNCE
Aliphatic Hydrocarbons
Aromatic Hydrocarbons
Oxygenated (ketones,etc)
RESISTANCE TO
Swelling in Lubricating Oil
Oil and Gasoline
Animal oils
Water Absorption
Oxidation
Ozone
Sunlight Aging
Heat Aging
Low Temperature (Degree C) -50 -40 -30 -50 -40 -59 -59 -15
High Temperature ( Degree C) 149 121 100 104 110 230 232 199
Flame
Vegetable Oils
Chlorinated Hydrocarbon

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