Comparison
Asphalt Modifier Grade Styrene-Butadiene-Styrene TPE vs PA66
A side-by-side comparison of Styrene-Butadiene-Styrene (SBS) Block Copolymer - Asphalt Modifier Grade and Polyamide 6,6 (Nylon).
Physical
Density
0.92 - 0.94 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.3 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
1.0 - 2.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.001 - 0.01 GPa
3.0 GPa (dry)
Tensile Strength
2 - 6 MPa
80 MPa
Elongation at Break
500 - 800 %
60 %
Impact Strength (Izod)
Poor
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-55 to -50 °C
70 °C
Melting Point
N/A (softening point around 80-100 °C)
255 – 265 °C
Continuous Service Temperature
-40 to 70 °C
100 – 120 °C
Heat Deflection Temperature
N/A
75 °C (unfilled)
Electrical
Dielectric Constant
2.6 - 3.0
4.0
Volume Resistivity
10^14 - 10^16 Ohm-cm
10¹² Ω·cm
Dielectric Strength
15 - 25 kV/mm
—
Chemical resistance
Acids
Good
Poor
Bases
Good
Good
Solvents
Resists water, dilute acids/bases; dissolves in aromatic and chlorinated hydrocarbons
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Limited
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)