Comparison
High-Performance Thermoplastic Vulcanizate (Santoprene) vs PA66
A side-by-side comparison of Thermoplastic Vulcanizate (TPV) - Santoprene family and Polyamide 6,6 (Nylon).
Physical
Density
0.87 - 0.97 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.1 - 0.3 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
1.0 - 2.5 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.01 - 0.05 GPa
3.0 GPa (dry)
Tensile Strength
10 - 25 MPa
80 MPa
Elongation at Break
300 - 600 %
60 %
Impact Strength (Izod)
Good
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-50 to -30 °C
70 °C
Melting Point
N/A (crosslinked rubber particles in thermoplastic matrix)
255 – 265 °C
Continuous Service Temperature
-50 to 135 °C
100 – 120 °C
Heat Deflection Temperature
50 - 80 °C
75 °C (unfilled)
Electrical
Dielectric Constant
2.8 - 3.3
4.0
Volume Resistivity
10^13 - 10^15 Ohm-cm
10¹² Ω·cm
Dielectric Strength
20 - 30 kV/mm
—
Chemical resistance
Acids
Good
Poor
Bases
Good
Good
Solvents
Good resistance to water, mild acids/bases, and many automotive fluids; swells in many hydrocarbon solvents
—
UV Resistance
Excellent
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Recyclable (thermoplastic processing)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)