Polypropylene is a thermoplastic polymer unusually resistant to many chemical solvents, bases and acids.  Some of the trade names for polypropylene include Ensipro®, Flametec® CP-5, Flametec® CP-7D, Fortilene®, Orthoform®, Polystone®, ProComp, Proteus®, Propylux®, Protec™ PP, Protec™ CoPP, Sanatec® PP, SIMOLIFE, TECAFINE® PP, and Versadur®.

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - 5.2 ksi
Specific Gravity @73 F D792 0.90 -
Tensile Strength @73 F, (ult)/(yld) D638 4,700 (ult) psi
Tensile Modulus of Elasticity @73 F D638 130,000 psi
Tensile Elongation at Break @73 F D638 100 %
Flexural Strength @73 F D790 7,000 psi
Flexural Modulus of Elasticity @73 F D790 180,000 psi
Shear Strength @73 F D732 - psi
Comprehensive Strength, (% Deformation) @73 F D695 - psi
Comprehensive Modulus of Elasticity @73 F D695 - psi
Hardness, Rockwell, Scale as noted @73 F D785 (R90) -
Hardness, Durometer, Shore D @73 F D2240 - -
Izod Impact, (Notched) @73 F D256 Type A


ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - - -
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) 5.0 E-05 in/in/F
Heat Deflection Temperature @264 psi D648


Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 330 F
Continuous Service Temperature in Air, (Max.) - - F
Thermal Conductivity - - BTU-in/hr-ft2-F
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 1.0 E+17 Volts/mil
Volume Resistivity D257 - ohm-cm
Dielectric Constant @10E6 Hz D150 - -
Dissipation Factor @10E6 Hz D150 - -
Flammability @3.1 mm unless noted UL94 HB -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) 0.02 % by weight
Water Absorption, Saturation D570(7) - % by weight