Comparison

Standard Natural Rubber vs PA66

A side-by-side comparison of Standard Natural Rubber and Polyamide 6,6 (Nylon).

Property

Standard Natural Rubber

PA66

Physical

Density

0.92 g/cm³

1.14 g/cm³

Water Absorption (24h)

0.3 %

1.2 %

Transparency

Opaque

Shrinkage

1.5 %

1.5 – 2.0 %

Mechanical

Young's Modulus

0.01 - 0.05 GPa

3.0 GPa (dry)

Tensile Strength

20 - 30 MPa

80 MPa

Elongation at Break

600 - 800 %

60 %

Impact Strength (Izod)

N/A

50 J/m

Flexural Strength

—

110 MPa

Thermal

Glass Transition Temperature

-70 °C

70 °C

Melting Point

N/A

255 – 265 °C

Continuous Service Temperature

-40 to 80 °C

100 – 120 °C

Heat Deflection Temperature

N/A

75 °C (unfilled)

Electrical

Dielectric Constant

2.5 - 3.0

4.0

Volume Resistivity

10^13 - 10^14 Ohm-cm

10¹² Ω·cm

Dielectric Strength

15 - 25 kV/mm

—

Chemical resistance

Acids

Poor

Bases

Good

Solvents

Poor (swells in aliphatic and aromatic hydrocarbons)

—

UV Resistance

Poor

Fair

Alcohols

—

Good

Oils & Fuels

—

Excellent

Sustainability

Recyclability

Limited

Recyclable

Recycling Code

N/A

Carbon Footprint

Moderate (depends on cultivation practices)

~7.4 kg CO₂e / kg

Bio-based Content

—

0 – 100 % (bio grades)