Comparison
Soft Touch Flexible Styrene-Ethylene-Butylene-Styrene vs PA66
A side-by-side comparison of Styrene-Ethylene-Butylene-Styrene (SEBS) block copolymer and Polyamide 6,6 (Nylon).
Physical
Density
0.91 - 0.93 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.3 %
1.2 %
Transparency
Opaque to Translucent
Opaque
Shrinkage
1.0 - 2.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.001 - 0.05 GPa
3.0 GPa (dry)
Tensile Strength
3 - 10 MPa
80 MPa
Elongation at Break
500 - 1000 %
60 %
Impact Strength (Izod)
Good
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-60 to -40 °C
70 °C
Melting Point
N/A (softening point around 100-150 °C)
255 – 265 °C
Continuous Service Temperature
-40 to 100 °C
100 – 120 °C
Heat Deflection Temperature
N/A
75 °C (unfilled)
Electrical
Dielectric Constant
2.5 - 3.0
4.0
Volume Resistivity
10^15 - 10^17 Ohm-cm
10¹² Ω·cm
Dielectric Strength
20 - 30 kV/mm
—
Chemical resistance
Acids
Good
Poor
Bases
Good
Good
Solvents
Resists water, dilute acids/bases; swells in aromatic and chlorinated hydrocarbons
—
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)