Comparison
Melamine-Formaldehyde Hard vs PEEK
A side-by-side comparison of Melamine-Formaldehyde Resin and Polyether Ether Ketone.
Physical
Density
1.50-1.60 g/cm³
1.32 g/cm³
Water Absorption (24h)
0.5-1.5 %
0.15 %
Transparency
White to Light Color
Opaque (amber)
Shrinkage
4-7 %
1.1 – 1.4 %
Mechanical
Young's Modulus
8-15 GPa
3.6 GPa
Tensile Strength
60-90 MPa
100 MPa
Elongation at Break
0.5-1.5 %
50 %
Impact Strength (Izod)
4-10 J/m
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
Undetermined (Degradation)
143 °C
Melting Point
N/A
343 °C
Continuous Service Temperature
80-130 °C
260 °C
Heat Deflection Temperature
70-120 °C
160 °C
Electrical
Dielectric Constant
5.0-6.5
3.2
Volume Resistivity
10^11-10^14 Ohm-cm
10¹⁶ Ω·cm
Dielectric Strength
12-20 kV/mm
—
Chemical resistance
Acids
Moderate resistance
Excellent
Bases
Moderate resistance
Excellent
Solvents
Resistant to alcohols and hydrocarbons
Excellent
UV Resistance
Moderate
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Difficult
Recyclable (specialty)
Recycling Code
N/A
7
Carbon Footprint
Moderate
~30 kg CO₂e / kg