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Density

1.04 – 1.07 g/cm³

1.20 g/cm³

1.14 g/cm³

Shrinkage

0.4 – 0.9 %

0.5 – 0.8 %

1.5 – 2.0 %

Specific Gravity

1.05

—

Surface Finish

Matte to glossy

—

Transparency

Opaque

Transparent (88% light transmission)

Opaque

Water Absorption (24h)

0.20 – 0.45 %

0.15 %

1.2 %

Mechanical

Property

Elongation at Break

10 – 50 %

100 – 150 %

60 %

Flexural Strength

60 – 80 MPa

90 – 100 MPa

110 MPa

Hardness (Rockwell M)

—

Hardness (Rockwell R)

100 – 115

—

Impact Strength (Izod)

200 – 400 J/m

600 – 900 J/m

50 J/m

Tensile Strength

40 – 50 MPa

60 – 70 MPa

80 MPa

Young's Modulus

1.8 – 2.5 GPa

2.3 – 2.4 GPa

3.0 GPa (dry)

Thermal

Property

CTE

80 – 100 × 10⁻⁶ /K

65 – 70 × 10⁻⁶ /K

—

Continuous Service Temperature

70 – 90 °C

115 – 130 °C

100 – 120 °C

Glass Transition Temperature

105 °C

147 °C

70 °C

Heat Deflection Temperature

85 – 100 °C

130 – 140 °C

75 °C (unfilled)

Melting Point

Amorphous (no true Tm)

—

255 – 265 °C

Thermal Conductivity

0.17 W/m·K

0.20 W/m·K

—

Electrical

Property

Dielectric Constant

2.7 – 3.2

2.9 – 3.0

4.0

Dielectric Strength

15 – 20 kV/mm

15 kV/mm

—

Surface Resistivity

10¹⁵ Ω

—

Volume Resistivity

10¹⁶ Ω·cm

10¹² Ω·cm

Chemical resistance

Property

Acetone

Attacks / dissolves

Poor (attacks)

—

Acids

—

Poor

Acids (dilute)

Good

—

Alcohols

Good

Fair

Good

Bases

Good

Poor

Good

Gasoline

Poor

Fair

—

Oils

—

Good

—

Oils & Fuels

—

Excellent

Oils & Greases

Fair

—

UV Resistance

Poor (unless stabilized)

Poor (unless coated)

Fair

Weathering

Poor without stabilizers

—

Sustainability

Property