Comparison
Flexible SLA Resin vs PLA
A side-by-side comparison of Flexible Photopolymer Resin for SLA and Polylactic Acid.
Physical
Density
1.05-1.15 g/cm³
1.24 g/cm³
Water Absorption (24h)
1.0-2.0 %
0.5 %
Transparency
Translucent to Opaque
Semi-transparent
Shrinkage
Moderate (1-3%)
0.3 – 0.5 %
Mechanical
Young's Modulus
0.01-0.1 GPa (at low strain)
3.5 GPa
Tensile Strength
5-15 MPa
50 – 65 MPa
Elongation at Break
100-300 %
6 %
Impact Strength (Izod)
Low (deforms)
16 J/m
Flexural Strength
—
80 MPa
Thermal
Glass Transition Temperature
-20 to 0 °C
60 °C
Melting Point
N/A (cross-linked polymer)
150 – 160 °C
Continuous Service Temperature
30-45 °C
45 °C
Heat Deflection Temperature
N/A (deforms)
55 °C
Electrical
Dielectric Constant
4.0-5.0
3.0
Volume Resistivity
10⁹-10¹¹ Ω·cm
10¹⁴ Ω·cm
Dielectric Strength
5-10 MV/m
—
Chemical resistance
Acids
Good resistance
Fair
Bases
Good resistance
Poor
Solvents
Attacked by strong solvents.
—
UV Resistance
Fair
Poor
Alcohols
—
Fair
Hydrolysis
—
Poor
Sustainability
Recyclability
Not Recyclable
Industrially compostable
Recycling Code
N/A
7
Carbon Footprint
High
~1.6 kg CO₂e / kg
Bio-based Content
—
100 %