Comparison
Urea-Formaldehyde UV Stable vs PA66
A side-by-side comparison of Urea-Formaldehyde Resin and Polyamide 6,6 (Nylon).
Physical
Density
1.45-1.55 g/cm³
1.14 g/cm³
Water Absorption (24h)
1.5-3.0 %
1.2 %
Transparency
Clear to Off-White
Opaque
Shrinkage
5-8 %
1.5 – 2.0 %
Mechanical
Young's Modulus
6-12 GPa
3.0 GPa (dry)
Tensile Strength
50-80 MPa
80 MPa
Elongation at Break
0.5-2.0 %
60 %
Impact Strength (Izod)
3-8 J/m
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
Undetermined (Degradation)
70 °C
Melting Point
N/A
255 – 265 °C
Continuous Service Temperature
60-100 °C
100 – 120 °C
Heat Deflection Temperature
40-80 °C
75 °C (unfilled)
Electrical
Dielectric Constant
5.5-7.0
4.0
Volume Resistivity
10^8-10^11 Ohm-cm
10¹² Ω·cm
Dielectric Strength
9-15 kV/mm
—
Chemical resistance
Acids
Poor resistance
Poor
Bases
Poor resistance
Good
Solvents
Resistant to hydrocarbons, swells in polar solvents
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Difficult
Recyclable
Recycling Code
N/A
7
Carbon Footprint
Low to Moderate (Formaldehyde concerns)
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)