ISO 9001:2015 Certified | Cage Code: 7L0f6

TYPICAL PROPERTIES of VESPEL® VESPEL SP211 (PTFE, GRAPHITE)

ASTM or UL test Property SP-211
Filler Material 10% PTFE,
15% Graphite
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.056
1.55
D570 Water Absorption, 24 hrs @ 73°F (%)
48 hrs @ 122°F (%)
0.21
0.49
MECHANICAL
D638 Tensile Strength, Ultimate @ 73°F (psi)
@ 500°F (psi)
6,500
3,500
D638 Tensile Modulus (psi)
D638 Tensile Elongation, Ultimate @ 73°F (%)
@ 500°F (%)
3.5
3.0
D790 Flexural Strength, Ultimate @ 73°F (psi)
@ 500°F (psi)
10,000
5,000
D790 Flexural Modulus @ 73°F (psi)
@ 500°F (psi)
450,000
200,000
D695 Compressive Strength, 10% strain @ 73°F (psi) 14,800
D695 Compressive Modulus (psi) 300,000
D785 Hardness, Rockwell E1-20
D256 IZOD Notched Impact (ft-lb/in)
Poisson’s Ratio
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
3.0
D648 Heat Deflection Temp (°F / °C)
at 264 psi
Max Continuous Operating Temp (°F / °C) 500 / 260
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)
5.3
18.3
UL94 Flammability Rating V-0
D149 Dielectric Strength (V/mil) short time, 1/8″ thick
D150 Dielectric Constant at 1 MHz
D150 Dissipation Factor at 1 MHz