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Typical Properties of Rulon®

Property

Test Method
Rulon® LR
Rulon® J
Rulon® 641

Mechanical Properties

Density (lb/in³)

ASTM D792
0.082 0.070 0.081

Tensile Strength (p.s.i.)

ASTM D1457
1,500 2,000 2,000

Tensile Elongation At Yield (%)

ASTM D1457
150 180 175

Hardness, Shore D

ASTM D2240
60-75 60 60

IZOD Notched Impact (ft-lbs/in)

ASTM D256
6.0 - -

Thermal Properties

Thermal Conductivity (BTU-in/ft²-hr-°F)

ASTM C177
2.30 1.70 2.60

Maximum Operating Temperature (°F)

-
500 500 500

Minimum Operating Temperature (°F)

-
-450 -450 -450

Electrical Properties

Dielectric Constant At 1 MHz

ASTM D150
2.5 2.4 -

Dissipation Factor At 1MHz

ASTM D150
0.003 0.001 -

Dielectric Strength (V/mil) short time, 0.8" thk.

ASTM D149
400-500 200 -

Water Absorption Rates

Water Absorption -24 hrs.(%)

ASTM D570
0 0 0

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be 
used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.

 
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