Comparison
Automotive Sealing Grade Thermoplastic Vulcanizate (TPV) vs PLA
A side-by-side comparison of Thermoplastic Vulcanizate (TPV) - Automotive Sealing Grade and Polylactic Acid.
Physical
Density
0.90 - 0.95 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.2 %
0.5 %
Transparency
Opaque
Semi-transparent
Shrinkage
1.5 - 2.2 %
0.3 – 0.5 %
Mechanical
Young's Modulus
0.02 - 0.04 GPa
3.5 GPa
Tensile Strength
12 - 20 MPa
50 – 65 MPa
Elongation at Break
350 - 500 %
6 %
Impact Strength (Izod)
Good
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-45 to -30 °C
60 °C
Melting Point
N/A
150 – 160 °C
Continuous Service Temperature
-50 to 135 °C
45 °C
Heat Deflection Temperature
60 - 80 °C
55 °C
Electrical
Dielectric Constant
2.9 - 3.4
3.0
Volume Resistivity
10^13 - 10^15 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
22 - 28 kV/mm
—
Chemical resistance
Acids
Good
Fair
Bases
Good
Poor
Solvents
Resists automotive fluids, water, mild acids/bases; swells in many hydrocarbon solvents
—
UV Resistance
Excellent
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Recyclable (thermoplastic processing)
Industrially compostable
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %