Comparison
Alkyd Coating Resin vs PEEK
A side-by-side comparison of Alkyd Resin and Polyether Ether Ketone.
Physical
Density
1.10-1.25 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.3-1.0 %
0.15 %
Transparency
Amber to Yellow
Opaque (amber)
Shrinkage
N/A (occurs during drying)
1.1 – 1.4 %
Mechanical
Young's Modulus
0.5-1.5 GPa (as film)
3.6 GPa
Tensile Strength
20-40 MPa (as film)
100 MPa
Elongation at Break
5-20 % (as film)
50 %
Impact Strength (Izod)
N/A
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
Variable (depends on formulation)
143 °C
Melting Point
N/A
343 °C
Continuous Service Temperature
60-100 °C
260 °C
Heat Deflection Temperature
N/A
160 °C
Electrical
Dielectric Constant
3.0-4.0
3.2
Volume Resistivity
10^12-10^14 Ohm-cm
10¹⁶ Ω·cm
Dielectric Strength
15-25 kV/mm
—
Chemical resistance
Acids
Moderate resistance
Excellent
Bases
Moderate resistance
Excellent
Solvents
Resistant to hydrocarbons, swells in polar solvents
Excellent
UV Resistance
Good
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Difficult
Recyclable (specialty)
Recycling Code
N/A
7
Carbon Footprint
Moderate
~30 kg CO₂e / kg