PolyethylenePolypropyleneFlexTemp
Properties*Low DensityHigh DensityImpact
(rubber-modified)
Thermoplastic Rubber
MECHANICAL CHARACTERISTICS
Specific gravity (density)0.910-0.9250.941-0.9650.890-0.91.940-.960
Tensile strength, p.s.i.600-23003100-55002800-44002400-3100
Elongation, %90.0-800.020.0-1000.0350.0->500.0500-620
Compressive strength, p.s.i.-2700-36004000-6500-
Tear strength (ASTM D1004)----
Impact strength, ft. lb./in. of notch (1/2x1/2 in. notched bar, izod test)No break0.5-20.01.0-15.0 @ 73°F-
Hardness, RockwellD41-D46
(Shore) R10
D60-70
(Shore)
R50-R85-
 
ELECTRICAL CHARACTERISTICS
Volume resistivity, ohm/cm3
(50% RH and 23°C.)
>10^16>10^16>10^15-
Dielectric constant, 60 cyc.2.25-2.35 2.30-2.352.3-
Dissipation (power)factor, 60 cyc.<0.0005<0.0005>0.0003-
 
SERVICE TEMPERATURES
Continuous °C/°F66/15074/165121/250132/275
Intermittent °C/°F79/175102/215-149/300
Brittleness °C/°F<-70/<-94-18/0<-70/<-940
 
RESISTANCE CHARACTERISTICS
Water absorp., 24 hr., 1/8” thick,%<0.015<0.01<0.01<.10
Burning rate (flammability), in./min.Very slow
(1.04)
Very slow
(1.00-1.04)
SlowSlow
Effect of sunlightUnprotected material crazes rapidly.Requires black for complete protection.-
Effect of weak acidsResistantVery ResistantCompletely Resistant Very Resistant
Effect of strong acidsAttacked by oxidizing acidsAttacked slowly by oxidizing acidsResistant to oxidising acids -
Effect of weak alkaliesResistantVery ResistantCompletely Resistant Very Resistant
Effect of strong alkaliesResistantVery ResistantVery Resistant Very Resistant
Effect of organic solventsResistant
(below 60°C)
Resistant
(below 80°C)
Attacked by hydrocarbons and chlorinated hydrocarbons Swells in contact with Hydrocarbons and Chlorinated hydrocarbons
Machine qualitiesGoodExcellentGoodFair
Clarity (Natural Material)Translucent to opaqueTranslucent to opaqueTranslucentOpaque
Abrasion resistance----

 

 Silicone RubberVinylFlex500PLUSStatic Conductive
MECHANICAL CHARACTERISTICS
Specific gravity (density)1.181.21.351.06
Tensile strength, p.s.i.200-1500230020001000
Elongation, %700400150300
Compressive strength, p.s.i.----
Tear strength (ASTM D1004)200pli185pli270pli-
Impact strength, ft. lb./in. of notch (1/2x1/2 in. notched bar, izod test)---No break
Hardness, RockwellA25-80 (Shore) A60-70 (Shore) 15 second shore A 89.5+15 second shore D 46
 
ELECTRICAL CHARACTERISTICS
Volume resistivity, ohm/cm3
(50% RH and 23°C.)
---100
Dielectric constant, 60 cyc.----
Dissipation (power)factor, 60 cyc.----
 
SERVICE TEMPERATURES
Continuous °C/°F232/45093/200149/250140ºF
Intermittent °C/°F316/600177/350260/500160ºF
Brittleness °C/°F-32/-29-32/-26-<-90ºF
 
RESISTANCE CHARACTERISTICS
Water absorp., 24 hr., 1/8” thick,%----
Burning rate (flammability), in./min.Very SlowSlowSlowSlow
Effect of sunlightVery Resistant Good Resistance Good ResistanceVery Resistant
Effect of weak acidsPoorVery Resistant Very Resistant Resistant
Effect of strong acidsPoorResistantResistantResistant
Effect of weak alkaliesPoorVery Resistant Very Resistant Resistant
Effect of strong alkaliesPoorResistantResistantResistant
Effect of organic solventsModerateGood resistance to alcohols, alphatic hydrocarbons and oils Good ResistanceResistant
Machine qualitiesPoorPoorGoodGood
Clarity (Natural Material)Clear to opaque Clear to opaque OpaqueOpaque
Abrasion resistanceLowVery GoodVery Good Low

 

For special materials options, contact Customer Service
*Property specifications of Caplugs parts are subject to change without notification.
DIMENSIONAL TOLERANCES*
Caplugs parts are designed in accord with functional dimensions and will perform to dimensions listed in this catalog. In view of the flexibility and stretch of most of the materials used in Caplugs parts, it is recommended that the following tolerances be used for checking purposes, especially by those unfamiliar with measuring this material.
**Independent Third Party Testing supports our published claims of Flex500PLUS successfully performing under intermittent service temperatures of over 500 F.
Tolerances for Inch dimensions given to three decimal places.
.010'' per each inch of length. Minimum is .010'' where dimension is less than one inch.
Examples:
Tolerance for .750'' dimension is .010''
Reason: Although .750''x .010'' = .0075'', .010'' is the minimum. Tolerance for 1.000'' is .010''.
Reason: 1.000''x.010'' = .010''. Tolerance for 1.500'' dimension is .015''.
Reason: 1.500'' x .010'' = .015''.
Tolerances for Inch dimensions given to two decimal places.
.020'' per each inch of length. Minimum is .020'' where dimension is less than one inch.
Examples:
Tolerance for .75'' dimension is .020''.
Reason: Although .75'' x .020'' = .015'', .020'' is the minimum. Tolerance for 1.00'' dimension is .020''.
Reason: 1.00''x.020'' = .020''. Tolerance for 1.50'' is .030''.
Reason: 1.50''x.020'' = .030''.
Tolerances for metric dimensions given to two decimal places.
.25mm per each 25.40mm of length (.01 mm per mm). Minimum is .25mm where dimension is less than 25.40mm.
Examples:
Tolerance for 19.00mm dimension is .25mm.
Reason: Although 19.00mm x .01 is .19mm, .25mm is the minimum. Tolerance for 25.40mm is .25mm.
Reason: 25.40mm x .01mm = .25mm. Tolerance for 38.10mm is .38mm.
Reason: 38.10mm x .01mm = .38mm.
Tolerances for metric dimensions given to one decimal place.
.5mm per each 25.4mm of length (.02 mm per mm). Minimum is .5 where dimension is less than 25.4mm.
Examples:
Tolerance for 19.0mm dimension is .5mm.
Reason: Although 19.0mm x .02mm = .38mm, .5mm is the minimum. Tolerance for 25.4mm dimension is .5mm.
Reason: 25.4mm x .02mm = .5mm. Tolerance for 38.1mm dimension is .76mm.
Reason: 38.1mm x .02mm = .76mm.

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