Material Data Chart

Properties* Aluminum Polyethylene Polypropylene Impact (rubber-modified) Ethylene Vinyl Acetate FlexTemp Thermoplastic Rubber Silicone Rubber Vinyl
Low-Density High-Density Standard High-Temp
Mechanical Characteristics
Specific gravity (density) 2.73 0.910 – 0.925 0.941 – 0.965 0.890. – 0.91 .920 – .950 .940 – .960 1.18 1.2 1.2
Tensile strength, p.s.i. 31 – 42 600 – 2300 3100 – 5500 2800 – 4400 1440 – 2500 2400 – 3100 200 – 1500 2300 2100
Elongation, % 20% min. 90.0 – 800.0 20.0 – 1000.0 350.0 – >500.0 550 – 900 500 – 620 700 400 270
Compressive strength, p.s.i. 11 2700 – 3600 4000 – 6500
Tear strength (ASTM D1004) 200pli 185pli 270pli
Impact strength, ft. lb./in. of notch (1/2×1/2 in. notched bar, izod test) No break No break 0.5 – 20.0 1.0 – 15.0 @ 73°F No break
Hardness, Rockwell D41 – D46 (Shore) R10 D60 – 70 (Shore) R50-R85 D17 – 45 (Shore) A25 – 80 (Shore) A60 – 70 (Shore) A80 – 90 (Shore)
Electrical Characteristics
Volume resistivity, ohm/cm3 (50% RH and 23°C) >1016 >1016 >1015 >1015
Dielectric constant, 60 cyc. 2.25 – 2.35 2.30 – 2.35 2.3 2.50 – 3.16
Dissipation (power) factor, 60 cyc. <0.0005 <0.0005 >0.0003 >0.0030
Service Temperatures
Continuous °C/°F 343/650 66/150 74/165 121/250 60/140 132/275 232/450 93/200 149/300
Intermittent °C/°F 343/650 79/175 102/215     149/300 316/600 177/350 246/475
Brittleness °C/°F -70/-94 <-70/<-94 -18/0 <-70/<-94 <-68/<-90 0 -32/-29 -32/-26
Resistance Characteristics
Water absorp., 24 hr., 1/8″ thick, % 0 <0.015 <0.01 <0.01 .05-.13 <.10
Burning rate (flammability), in./min. Very Slow (1.04) Very Slow (1.00 – 1.04) Slow Slow Very Slow Slow Slow
Effect of sunlight Unprotected material crazes rapidly. Requires black for complete protection. Very Resistant Good Resistance Good Resistance
Effect of weak acids Varies Resistant Very Resistant Completely Resistant Resistant Very Resistant Poor Very Resistant Very Resistant
Effect of strong acids Varies Attacked by oxidizing acids Attacked slowly by oxidizing acids Resistant to oxidizing acids Resistant Poor Resistant Resistant
Effect of weak alkalies Cleaning Agent Resistant Very Resistant Completely Resistant Resistant Very Resistant Poor Resistant Resistant
Effect of strong alkalies Etches Resistant Very Resistant Very Resistant Resistant Very Resistant Poor Resistant Resistant
Effect of organic solvents None Resistant (below 60°C) Resistant (below 80°C) Attacked by hydrocarbons and chlorinated hydrocarbons Resistant Swells in contact with hydrocarbons and chlorinated hydrocarbons Moderate Good Resistance to alcohols, aliphatic hydrocarbons and oils Good Resistance to alcohols, aliphatic hydrocarbons and oils
Machine qualities Fair Good Excellent Good Fair Fair Poor Poor Poor
Clarity (Natural Material) Translucent to opaque Translucent to opaque Translucent Translucent to opaque Opaque Clear to opaque Clear to opaque
Abrasion resistance Low Low Very Good Very Good
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