Comparison
Mycelium Composite vs PA66
A side-by-side comparison of Mycelium Composite Material, Structural Grade V and Polyamide 6,6 (Nylon).
Physical
Density
0.1 - 0.5 g/cm³
1.14 g/cm³
Water Absorption (24h)
2.0-5.0 %
1.2 %
Transparency
Opaque
Opaque
Shrinkage
Varies with growth process
1.5 – 2.0 %
Mechanical
Young's Modulus
Highly variable (depends on density and substrate)
3.0 GPa (dry)
Tensile Strength
Highly variable
80 MPa
Elongation at Break
Highly variable
60 %
Impact Strength (Izod)
Highly variable
50 J/m
Flexural Strength
—
110 MPa
Thermal
Glass Transition Temperature
Not applicable (natural material)
70 °C
Melting Point
None (decomposes)
255 – 265 °C
Continuous Service Temperature
60 °C
100 – 120 °C
Heat Deflection Temperature
Not applicable
75 °C (unfilled)
Electrical
Dielectric Constant
Variable
4.0
Volume Resistivity
Variable
10¹² Ω·cm
Dielectric Strength
Low to moderate
—
Chemical resistance
Acids
Sensitive
Poor
Bases
Sensitive
Good
Solvents
Resistant to most common solvents but can be degraded by strong acids/bases
—
UV Resistance
Poor
Fair
Alcohols
—
Good
Oils & Fuels
—
Excellent
Sustainability
Recyclability
Biodegradable (compost)
Recyclable
Recycling Code
7 (Other)
7
Carbon Footprint
Negative to very low (utilizes waste streams, sequesters carbon)
~7.4 kg CO₂e / kg
Bio-based Content
—
0 – 100 % (bio grades)