Comparison
Asphalt Modifier Grade Styrene-Butadiene-Styrene TPE vs PETG
A side-by-side comparison of Styrene-Butadiene-Styrene (SBS) Block Copolymer - Asphalt Modifier Grade and Polyethylene Terephthalate Glycol.
Physical
Density
0.92 - 0.94 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.3 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
1.0 - 2.0 %
0.2 – 0.5 %
Mechanical
Young's Modulus
0.001 - 0.01 GPa
2.1 GPa
Tensile Strength
2 - 6 MPa
50 MPa
Elongation at Break
500 - 800 %
120 %
Impact Strength (Izod)
Poor
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
-55 to -50 °C
80 °C
Melting Point
N/A (softening point around 80-100 °C)
—
Continuous Service Temperature
-40 to 70 °C
65 °C
Heat Deflection Temperature
N/A
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
2.6 - 3.0
3.3
Volume Resistivity
10^14 - 10^16 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
15 - 25 kV/mm
—
Chemical resistance
Acids
Good
Good
Bases
Good
Fair
Solvents
Resists water, dilute acids/bases; dissolves in aromatic and chlorinated hydrocarbons
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Limited
Recyclable
Recycling Code
7 (Other)
1
Carbon Footprint
Moderate
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %