Comparison
Hot Melt Adhesive Grade Styrene-Isoprene-Styrene TPE vs PA66
A side-by-side comparison of Styrene-Isoprene-Styrene (SIS) Block Copolymer - Hot Melt Adhesive Grade and Polyamide 6,6 (Nylon).
Physical
Density
0.91 - 0.93 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.1 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
1.0 - 2.0 %
1.5 – 2.0 %
Mechanical
Young's Modulus
0.001 - 0.008 GPa
3.0 GPa (dry)
Tensile Strength
1 - 4 MPa
80 MPa
Elongation at Break
600 - 900 %
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 60-80 °C)
255 – 265 °C
Continuous Service Temperature
-50 to 70 °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; 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)