Comparison
Flexible SLA Resin vs PEEK
A side-by-side comparison of Flexible Photopolymer Resin for SLA and Polyether Ether Ketone.
Physical
Density
1.05-1.15 g/cm³
1.32 g/cm³
Water Absorption (24h)
1.0-2.0 %
0.15 %
Transparency
Translucent to Opaque
Opaque (amber)
Shrinkage
Moderate (1-3%)
1.1 – 1.4 %
Mechanical
Young's Modulus
0.01-0.1 GPa (at low strain)
3.6 GPa
Tensile Strength
5-15 MPa
100 MPa
Elongation at Break
100-300 %
50 %
Impact Strength (Izod)
Low (deforms)
55 J/m
Flexural Strength
—
170 MPa
Thermal
Glass Transition Temperature
-20 to 0 °C
143 °C
Melting Point
N/A (cross-linked polymer)
343 °C
Continuous Service Temperature
30-45 °C
260 °C
Heat Deflection Temperature
N/A (deforms)
160 °C
Electrical
Dielectric Constant
4.0-5.0
3.2
Volume Resistivity
10⁹-10¹¹ Ω·cm
10¹⁶ Ω·cm
Dielectric Strength
5-10 MV/m
—
Chemical resistance
Acids
Good resistance
Excellent
Bases
Good resistance
Excellent
Solvents
Attacked by strong solvents.
Excellent
UV Resistance
Fair
Fair
Hydrolysis (steam)
—
Excellent
Sustainability
Recyclability
Not Recyclable
Recyclable (specialty)
Recycling Code
N/A
7
Carbon Footprint
High
~30 kg CO₂e / kg