Comparison

Automotive Sealing Grade Thermoplastic Vulcanizate (TPV) vs PA66

A side-by-side comparison of Thermoplastic Vulcanizate (TPV) - Automotive Sealing Grade and Polyamide 6,6 (Nylon).

Property

Automotive Sealing Grade Thermoplastic Vulcanizate (TPV)

PA66

Physical

Density

0.90 - 0.95 g/cm³

1.14 g/cm³

Water Absorption (24h)

0.2 %

1.2 %

Transparency

Opaque

Shrinkage

1.5 - 2.2 %

1.5 – 2.0 %

Mechanical

Young's Modulus

0.02 - 0.04 GPa

3.0 GPa (dry)

Tensile Strength

12 - 20 MPa

80 MPa

Elongation at Break

350 - 500 %

60 %

Impact Strength (Izod)

Good

50 J/m

Flexural Strength

—

110 MPa

Thermal

Glass Transition Temperature

-45 to -30 °C

70 °C

Melting Point

N/A

255 – 265 °C

Continuous Service Temperature

-50 to 135 °C

100 – 120 °C

Heat Deflection Temperature

60 - 80 °C

75 °C (unfilled)

Electrical

Dielectric Constant

2.9 - 3.4

4.0

Volume Resistivity

10^13 - 10^15 Ohm-cm

10¹² Ω·cm

Dielectric Strength

22 - 28 kV/mm

—

Chemical resistance

Acids

Good

Poor

Bases

Good

Solvents

Resists automotive fluids, water, mild acids/bases; swells in many hydrocarbon solvents

—

UV Resistance

Excellent

Fair

Alcohols

—

Good

Oils & Fuels

—

Excellent

Sustainability

Recyclability

Recyclable (thermoplastic processing)

Recyclable

Recycling Code

7 (Other)

Carbon Footprint

Moderate

~7.4 kg CO₂e / kg

Bio-based Content

—

0 – 100 % (bio grades)