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Abbreviations for Elastomers


atm = Atmostphere
Btu = British Thermal Units
cc = Cubic Centimenter
cm = Centimeter
conc = Concentrated of
           Concentration
cont = continuous
C = Degrees Centigrade
F= degrees Fahrenheit
ft = foot
Ga Gy = Gamma Gray
gm = Gram
hr =Hour
in = Inch
max = Maximum
min = Minimum
pH = Degrees of Acidity of
        Alkalinity
ppm = Parts per Million
psI = Pounds per Square Inch
RH = Relative Humidity
sec = Second
sq = Square
TEMP = Temperature
% = Percent
* = Some Grades


Fluoro Carbon Poly Urethane Natural Isoprene Silicone Nylon 12 Poly Vinyl Chloride Flexible Poly Ethylene Low Density

Santoprene
Copolymer TPO

Common Name Fluorinated
HydroCaron
Poly
urethane
Natural
Rubber
Silicone Nylon 12 PVC,
Plasticized vinyl
Poly
ethylene
Copolymer TPO
Chemical Definition Vilylidiene Fluoride
Hexafluoropropylene
AU = Polyester
EU = Polyether
Polyisoprene Polydimethylsiloxne Polyamide Polyvinylchloride Low Density
Polyethylene
EPDM-polypropylene
T-Plastic Vulcanate
Density (gm/cm³) 1.40-1.95 AU = 1.2-1.25
EU = 1.04-1.07
0.92-0.95 1.07-2.05 1.04-1.06 1.16-1.40 0.91-0.92 0.94-0.98
Melting Temp(°F) . 275-375 . . 320-390 290-450 250-400 380-400
Min Cont Use Temp(°F) -20 to -70 -65 -76 -178 . -30 to -40 -40 to -60 -40 to -80
Max Cont Use Temp(°F) 550 - 650 250 250 600 212 185 to 221 150 to 176 275 to 300
Stifening Temp(°F) -10 to 10 -10 to -35 -20 to -65 -60 to -480 . -40 -29 .
Brittle Temp(°F) -s35 to -60 -60 to -200 -80 -90 to -180 -76 -12 to 50 -80 to -148 -20 to 81
Hot Elongation Change(% at °F) -33 at 212
-63 at 350
-32 at 212
-54 at 350
17 at 212
-33 at 350
-29 at 212
-48 at 350
. -35 at 266 . -2 to -14 at 257
-2 to -22 at 350
Strain Relaxation at Room Temp(Creep) Good Fair - Poor Excellent Fair - Excellent . Poor Poor .
Strain Relaxation at 212°F Good -Excellent Poor good Excellent Excellent . Poor .
Glass Transition
Temp Tg(°F)
-5 -87 -99 . . . . .
Heat Aging at 212F Outstanding Good fair- Good Excellent-Outstanding Good to 212 with additives Poor Poor Excellent
Aging in Oxygen,
Ozone and Weather
Very Good-Excellent Excellent Fair Excellent Good Excellent Excellent(Dark) .
Stream Resistance Poor - Good Poor Fair - Good Fair - Good Poor Poor
(30 min/max)
Poor - Fair .