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Density

1.04 – 1.07 g/cm³

1.24 g/cm³

1.27 g/cm³

Shrinkage

0.4 – 0.9 %

0.3 – 0.5 %

0.2 – 0.5 %

Specific Gravity

1.05

—

Surface Finish

Matte to glossy

—

Transparency

Opaque

Semi-transparent

Transparent

Water Absorption (24h)

0.20 – 0.45 %

0.5 %

0.13 %

Mechanical

Property

Elongation at Break

10 – 50 %

6 %

120 %

Flexural Strength

60 – 80 MPa

80 MPa

70 MPa

Hardness (Rockwell R)

100 – 115

—

Impact Strength (Izod)

200 – 400 J/m

16 J/m

100 J/m

Tensile Strength

40 – 50 MPa

50 – 65 MPa

50 MPa

Young's Modulus

1.8 – 2.5 GPa

3.5 GPa

2.1 GPa

Thermal

Property

CTE

80 – 100 × 10⁻⁶ /K

—

68 × 10⁻⁶ /K

Continuous Service Temperature

70 – 90 °C

45 °C

65 °C

Glass Transition Temperature

105 °C

60 °C

80 °C

Heat Deflection Temperature

85 – 100 °C

55 °C

70 °C

Melting Point

Amorphous (no true Tm)

150 – 160 °C

—

Thermal Conductivity

0.17 W/m·K

—

Electrical

Property

Dielectric Constant

2.7 – 3.2

3.0

3.3

Dielectric Strength

15 – 20 kV/mm

—

Surface Resistivity

10¹⁵ Ω

—

Volume Resistivity

10¹⁶ Ω·cm

10¹⁴ Ω·cm

Chemical resistance

Property

Acetone

Attacks / dissolves

—

Acids

—

Fair

Good

Acids (dilute)

Good

—

Alcohols

Good

Fair

Good

Bases

Good

Poor

Fair

Gasoline

Poor

—

Hydrolysis

—

Poor

—

Oils

—

Good

Oils & Greases

Fair

—

UV Resistance

Poor (unless stabilized)

Poor

Fair

Weathering

Poor without stabilizers

—

Sustainability

Property