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Elmet Technologies

Reynolds Clear Flex® 95 Water Clear Urethane Rubber
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Liquid

Material Notes: Product Overview: Clear Flex™ 50 and Clear Flex™ 95 are water white clear urethane liquid rubber compounds designed for applications that require absolute clarity and resistance to sunlight. Low viscosity ensures easy mixing and pouring. Clear Flex™ 50 and 95 cure at room temperature with negligible shrinkage. Cured castings are clear, flexible and UV Resistant. Vibrant colors and color effects are achieved by adding pigments. Applications include making clear-cut molds, model reproductions, decorative cast pieces, special effects, prototype parts.

Information provided by Reynolds Advanced Materials

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.04 g/cc1.04 g/ccASTM D-1475
Viscosity 250 cP250 cPMixed; ASTM D-2393
Linear Mold Shrinkage 0.0028 cm/cm0.0028 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 9595ASTM D-2240
Tensile Strength 17.2 MPa2500 psiASTM D-412
Elongation at Break 175 %175 %ASTM D-412
Tear Strength 35.1 kN/m200 pliDie C; ASTM D-624
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 6.014e+15 ohm-cm>= 6.014e+15 ohm-cmASTM D-150-98
Surface Resistance >= 7.646e+13 ohm>= 7.646e+13 ohmASTM D-150-98
Dielectric Constant 6.62
@Frequency 100 Hz
6.62
@Frequency 100 Hz
ASTM D-150-98
Dielectric Strength 18.7 kV/mm474 kV/inASTM D-147-97a
Dissipation Factor 0.103
@Frequency 100 Hz
0.103
@Frequency 100 Hz
ASTM D-150-98
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.491
@Temperature 25.0 °C
1.491
@Temperature 77.0 °F
 1.493
@Temperature 20.0 °C
1.493
@Temperature 68.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 960 min16.0 hour
Pot Life 25.0 min25.0 minASTM D-2471
 
Descriptive Properties
ColorClear
Mix Ratio1A:1.5Bby weight
Specific Volume26.8[cu. in./lb.]

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PREYN093 / 296794

Ensinger PEI

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