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PORON 4790-92 Extra Soft Slow Rebound

Typical Product Properties
PROPERTY TEST METHOD VALUE
Density, lb./ft3  (kg/m3) ASTM D3574 - Test A 15  (240)
Tolerance, %

-

 ± 10
Physical
Thickness, inches (mm) - 0.125  (3.18)
0.188  (4.78)
0.250  (6.35)
0.375  (9.53)
0.500  (12.70)
Tolerance, % - ± 10
Standard Color, (Code) - Black (04)
Compression Set, %, max.

 

 

 

 ASTM D3574 - Test D
@ 73°F (23°C)

ASTM D3574 - Test D
@ 158°F (70°C)

ASTM D3574 - Test J/ Test D after autoclaved 5 hrs. @ 250°F (121°C)

 2


10


5

Compression Force Deflection, 
psi (kPa) 		0.2”/min. Strain Rate.
Force Measured @ 25% Deflection		 0.3-3.5
(2-24)
Resilience by Vertical Rebound Value, % ASTM D2632-96 4
Dimensional Stability, % max. change 22 hrs @ 176°F (80°C) in a
forced-air oven		 ±5
Fogging SAE-J1756 Pass
Hardness, Durometer, Shore "O" ASTM D2240-97 2
Tear Strength, pli, typical    (kN/m) ASTM D624 - Die C 4 
(0.7)
Tensile Elongation, % min. ASTM D3574 - Test E 120
Tensile Strength, psi, min.  (kPa) ASTM D3574 - Test E 12
(83)
Thermal
Temperature Resistance
Recommended Constant Use, max.
Recommended Intermittent Use, max.


-
158°F - (70°C)

250°F - (121°C)
Thermal Conductivity, W/m-C
(BTU-in./hr. ft2-F)


ASTM C518

 0.083 (0.53)
Coefficient of Thermal Expansion

2.8 x 10-4 in./in./°C
Electrical
Surface Resistivity, ohm/sq. ASTM D257

10 x 1011
Volume Resistivity, ohm/cm ASTM D257

8 x 1011
Dielectric Constant, K' ("DK") ASTM D150 measurements @ 726F (22°C) relative humidity 50% for 24 hrs.

1.48
Dissipation Factor, tan D ("DF") ASTM D150

0.04
Dielectric Strength, volts/mil ASTM D149

50
Environmental
Water Absorption, % weight gain, typ. AMS 3568 2.2
Notes:
1. All metric conversions are approximate.
2. Thinner versions of this product are available supported.
    Note that some of the above test results may be altered with the addition of the PET film.

The above data represents preliminary values. It is not intended to and does not create any warranties, express or implied, including any warranty of merchantability or fitness for a particular purpose. The user should determine the suitability of Rogers PORON material for each application.

To request additional information or Samples: Request Form

PORON® is a licensed trademark of Rogers Corporation.

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PORON® Urethanes and R/bak® Cushion Mounting Materials
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