Comparison

Glass-Filled PA12 vs PETG

A side-by-side comparison of Polyamide 12, Glass Fiber Reinforced and Polyethylene Terephthalate Glycol.

Property

Glass-Filled PA12

PETG

Physical

Density

1.15-1.25 g/cm³

1.27 g/cm³

Water Absorption (24h)

0.3-0.5 %

0.13 %

Transparency

Opaque

Transparent

Shrinkage

0.3-0.6 %

0.2 – 0.5 %

Mechanical

Young's Modulus

4.0-6.0 GPa

2.1 GPa

Tensile Strength

70-90 MPa

50 MPa

Elongation at Break

10-25 %

120 %

Impact Strength (Izod)

20-40 kJ/m

100 J/m

Flexural Strength

—

70 MPa

Thermal

Glass Transition Temperature

40-50 °C

80 °C

Melting Point

175-185 °C

—

Continuous Service Temperature

100-120 °C

65 °C

Heat Deflection Temperature

130-160 °C (1.8 MPa)

70 °C

CTE

—

68 × 10⁻⁶ /K

Electrical

Dielectric Constant

3.2-3.8

3.3

Volume Resistivity

10^11-10^13 Ohm-cm

10¹⁴ Ω·cm

Dielectric Strength

18-24 kV/mm

—

Chemical resistance

Acids

Fair

Good

Bases

Good

Fair

Solvents

Good

—

UV Resistance

Fair

Alcohols

—

Good

Oils

—

Good

Sustainability

Recyclability

Recyclable

Recycling Code

7 (Other)

Carbon Footprint

Moderate

~2.7 kg CO₂e / kg

Bio-based Content

—

0 %