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