Vespel SP-1 Polyimide Data Sheet

||Vespel SP-1 Polyimide Data Sheet
Vespel SP-1 Polyimide Data Sheet2018-03-22T13:30:45+00:00

Vespel is the trademark of a range of durable high-performance polyimide-based plastics. This high performance polymer is mostly used in aerospace, semiconductor and transportation technology.

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - - ksi
Specific Gravity @73 F D792 1.43 -
Tensile Strength @73 F, (ult)/(yld) D638 12,500 (ult) psi
Tensile Modulus of Elasticity @73 F D638 - psi
Tensile Elongation at Break @73 F D638 8 %
Flexural Strength @73 F D790 16,000 psi
Flexural Modulus of Elasticity @73 F D790 450,000 psi
Shear Strength @73 F D732 13,000 psi
Comprehensive Strength, (% Deformation) @73 F D695 19,300 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 350,000 psi
Hardness, Rockwell, Scale as noted @73 F D785 (E45) -
Hardness, Durometer, Shore D @73 F D2240 - -
Izod Impact, (Notched) @73 F D256 Type A 0.8 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.29 -
Limiting PV, (with 4 to 1 factor of safety applied) - - psi-ft/min
Thermal ASTM Test Method Value Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 3.0 E-05 in/in/F
Heat Deflection Temperature @264 psi D648 680 F
Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 - F
Continuous Service Temperature in Air, (Max.) - - F
Thermal Conductivity - 2.40 BTU-in/hr-ft2-F
Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - - ksi
Specific Gravity @73 F D792 1.43 -
Tensile Strength @73 F, (ult)/(yld) D638 12,500 (ult) psi
Tensile Modulus of Elasticity @73 F D638 - psi
Tensile Elongation at Break @73 F D638 8 %
Flexural Strength @73 F D790 16,000 psi
Flexural Modulus of Elasticity @73 F D790 450,000 psi
Shear Strength @73 F D732 13,000 psi
Comprehensive Strength, (% Deformation) @73 F D695 19,300 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 350,000 psi
Hardness, Rockwell, Scale as noted @73 F D785 (E45) -
Hardness, Durometer, Shore D @73 F D2240 - -
Izod Impact, (Notched) @73 F D256 Type A 0.8 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - 0.29 -
Limiting PV, (with 4 to 1 factor of safety applied) - - psi-ft/min
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 560 Volts/mil
Volume Resistivity D257 1E15 - 1E16 ohm-cm
Dielectric Constant @10E6 Hz D150 3.6 -
Dissipation Factor @10E6 Hz D150 0.003 -
Flammability @3.1 mm unless noted UL94 - -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) 0.24 % by weight
Water Absorption, Saturation D570(7) 1.30 % by weight