Comparison
Castable SLA Resin vs PA66
A side-by-side comparison of Castable Photopolymer Resin for SLA and Polyamide 6,6 (Nylon).
Physical
Density
1.15-1.25 g/cm³
1.14 g/cm³
Water Absorption (24h)
0.3-0.6 %
1.2 %
Transparency
Opaque (often brown or grey)
Opaque
Shrinkage
Moderate (1-3%)
1.5 – 2.0 %
Mechanical
Young's Modulus
1.0-2.0 GPa
3.0 GPa (dry)
Tensile Strength
20-35 MPa
80 MPa
Elongation at Break
1-3 %
60 %
Impact Strength (Izod)
Very Low
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
50-60 °C
70 °C
Melting Point
N/A (cross-linked polymer)
255 – 265 °C
Continuous Service Temperature
40-50 °C
100 – 120 °C
Heat Deflection Temperature
40-50 °C @ 0.45 MPa
75 °C (unfilled)
Electrical
Dielectric Constant
3.0-3.5
4.0
Volume Resistivity
10¹³-10¹⁵ Ω·cm
10¹² Ω·cm
Dielectric Strength
15-20 MV/m
—
Chemical resistance
Acids
Fair resistance
Poor
Bases
Poor resistance
Good
Solvents
Attacked by strong solvents.
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Not Recyclable
Recyclable
Recycling Code
N/A
7
Carbon Footprint
High
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)