Comparison
Automotive Hose Grade Ethylene Propylene Diene Monomer (EPDM) vs PLA
A side-by-side comparison of Ethylene Propylene Diene Monomer (EPDM) - Automotive Hose Grade and Polylactic Acid.
Physical
Density
0.88 - 0.92 g/cm³
1.24 g/cm³
Water Absorption (24h)
0.2 %
0.5 %
Transparency
Opaque
Semi-transparent
Shrinkage
1.2 - 2.0 %
0.3 – 0.5 %
Mechanical
Young's Modulus
0.015 - 0.03 GPa
3.5 GPa
Tensile Strength
8 - 18 MPa
50 – 65 MPa
Elongation at Break
400 - 600 %
6 %
Impact Strength (Izod)
N/A
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-55 to -45 °C
60 °C
Melting Point
N/A
150 – 160 °C
Continuous Service Temperature
-40 to 150 °C
45 °C
Heat Deflection Temperature
N/A
55 °C
Electrical
Dielectric Constant
2.4 - 2.9
3.0
Volume Resistivity
10^14 - 10^16 Ohm-cm
10¹⁴ Ω·cm
Dielectric Strength
25 - 35 kV/mm
—
Chemical resistance
Acids
Good
Fair
Bases
Good
Poor
Solvents
Resists water, steam, antifreeze; Poor resistance to hydrocarbon oils
—
UV Resistance
Excellent
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Limited
Industrially compostable
Recycling Code
N/A
7
Carbon Footprint
Moderate
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %