Page 55 - GarlockFluidSealing2010

B-23
Properties of Elastomers
WaterChemicalAnimal & Vegetable OilAlkali, CondensedAlkali, DiluteOil & GasolineLacquersOxygenated HydrocarbonsAromatic HydrocarbonsAliphatic HydrocarbonsAcid, ConcentratedAcid, DiluteSwelling in OilRadiationWater AbsorptionElectrical InsulationDielectric StrengthTensile StrengthCompression SetRebound, ColdRebound, HotDynamicImpermeabilityAbrasionTearFlameColdHeatOxidationSunlightWeatherOzone
ANSI / ASTMD1418-77ASTM D-2000D1418-77
WARNING:
Properties/applications shown throughout this brochure are typical. Your specifc applica-
tion should not be undertaken without independent study and evaluation for suitability.
For specifc application recommendations consult Garlock. Failure to select the proper
sealing products could result in property damage and/or serious personal injury.
Performance data published in this brochure has been developed from feld testing,
customer feld reports and/or in-house testing.
While the utmost care has been used in compiling this brochure, we assume no respon-
sibility for errors. Specifcations subject to change without notice. This edition cancels
all previous issues. Subject to change without notice.
GARLOCK is a registered trademark for packings, seals, gaskets, and other products
of Garlock.
* Hypalon and Viton are registered trademarks of DuPont Dow
Elastomers.
** Fluorel is a registered trademark of 3M Companies.
† Tefon and Kevlar are registered trademarks of DuPont.
Material
Designation Rating Scale Code Elastomer Physical and Chemical Properties Comparison
7 - Outstanding 3 - Fair to Good
6 - Excellent 2 - Fair
5 - Very Good 1 - Poor to Fair
4 - Good 0 - Poor
X - Contact Manufacturer
COMMON NAME
Chemical Group Name
BC NEOPRENE
CR BE chloroprene 4 3 4 0 4 4 0 1 2 3 4 6 4 5 4 3 5 4 2 4 5 2 4 5 4 4 4 4 5 5 6 5
GUM RUBBER
NR AA polyisoprene, synthetic 5 3 X X X 0 0 4 0 0 3 3 0 6 5 5 6 6 4 6 6 6 2 7 5 0 5 2 4 0 2 0
NATURAL RUBBER
IR AA polyisoprene, synthetic 5 3 X X X 0 0 4 0 0 3 3 0 6 5 5 6 6 4 6 6 2 2 6 5 0 5 2 4 0 2 0
BUTYL
IIR AA isobutene-isoprene 5 6 5 4 4 0 3 4 0 0 4 6 0 4 5 5 5 4 3 0 5 2 6 4 4 0 4 5 6 5 5 6
AA CHLOROBUTYL
CIIR BA chloro-isobutene-isoprene 5 6 5 4 4 0 3 4 0 0 4 6 0 4 5 5 5 4 3 0 5 2 6 4 4 0 4 5 6 5 5 6
BE
NBR BK BUNA-N / NITRILE 4 3 5 0 4 5 2 0 4 6 4 4 5 5 4 1 0 5 5 4 4 5 4 4 3 0 3 4 4 0 2 2
CH nitrile-butadiene
SBR / GRS / BUNA-S
SBR AA styrene-butadiene 5 3 X 2 4 0 0 4 0 0 3 3 0 6 5 5 4 5 4 4 4 4 2 5 3 0 5 3 2 0 2 0
HYPALON*
CSM CE chloro-sulfonyl-polyethylene 5 6 4 4 4 4 3 1 2 3 4 6 4 5 4 3 5 2 2 2 4 2 4 4 3 4 4 4 6 7 6 7
VlTON*/ FLUOREL**
FKM HK fuorocarbon elastomer 5 6 6 0 4 6 1 0 6 6 6 5 6 5 5 3 5 5 6 2 4 5 5 5 2 6 2 7 7 7 7 7
EPR BA EPDM
CA ethylene-propylene- 5 6 5 6 6 0 3 6 0 0 4 6 0 7 6 6 7 5 4 6 6 5 4 5 4 0 5 6 6 7 6 7
DA diene-terpolymer
TEFLON † / TFE / FEP
AFMU fuoro-ethylene-polymers 7 7 7 7 7 7 7 7 7 7 7 7 7 3 7 X X X X X X X X 4 X X X 7 7 7 7 7
S GE SILICONE 5 5 5 0 2 X 0 2 0 0 2 6 2 5 6 6 4 0 3 6 6 0 2 0 2 3 6 7 6 6 6 6
Temperature Ratings
Body Material Max. Temp.
Chlorobutyl/polyester................................+250°F (+120°C)
Chlorobutyl/nylon tire cord........................+250°F (+120°C)
Chlorobutyl/fberglass/Kevlar†
with EPDM tube and cover. ..............+300°F (+150°C)
Fluoroelastomer/fberglass/Kevlar. ...........+400°F (+205°C)
Liner and/or Cover Material Max. Temp.
EPDM........................................................+300°F (+150°C)
FEP fuorocarbon......................................+400°F (+205°C)
Fluoroelastomer........................................+400°F (+205°C)
HNBR (hydrogenated nitrile).....................+300°F (+150°C)
Hypalon.....................................................+250°F (+120°C)
Natural/gum. .............................................+180°F (+80°C)
Neoprene..................................................+250°F (+120°C)
Nitrile.........................................................+250°F (+120°C)
PTFE.........................................................+450°F (+230°C)