Comparison
Impact Modified Acetal Homopolymer vs PA66
A side-by-side comparison of Polyoxymethylene Homopolymer, Impact Modified and Polyamide 6,6 (Nylon).
Physical
Density
1.41-1.43 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.2-0.4 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
1.2-2.6 %
1.5 – 2.0 %
Mechanical
Young's Modulus
2.5-3.5 GPa
3.0 GPa (dry)
Tensile Strength
55-75 MPa
80 MPa
Elongation at Break
30-60 %
60 %
Impact Strength (Izod)
80-120 kJ/m
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
-50 to -10 °C
70 °C
Melting Point
170-175 °C
255 – 265 °C
Continuous Service Temperature
80-100 °C
100 – 120 °C
Heat Deflection Temperature
100-130 °C (1.8 MPa)
75 °C (unfilled)
Electrical
Dielectric Constant
3.7-4.1
4.0
Volume Resistivity
10^11-10^13 Ohm-cm
10¹² Ω·cm
Dielectric Strength
15-23 kV/mm
—
Chemical resistance
Acids
Fair
Poor
Bases
Poor
Good
Solvents
Excellent
—
UV Resistance
Fair
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Recyclable
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Moderate
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)