Comparison

High-Performance Thermoplastic Vulcanizate (Santoprene) vs ABS

A side-by-side comparison of Thermoplastic Vulcanizate (TPV) - Santoprene family and Acrylonitrile Butadiene Styrene.

Property

High-Performance Thermoplastic Vulcanizate (Santoprene)

ABS

Physical

Density

0.87 - 0.97 g/cm³

1.04 – 1.07 g/cm³

Water Absorption (24h)

0.1 - 0.3 %

0.20 – 0.45 %

Transparency

Opaque

Shrinkage

1.0 - 2.5 %

0.4 – 0.9 %

Specific Gravity

—

1.05

Surface Finish

—

Matte to glossy

Mechanical

Young's Modulus

0.01 - 0.05 GPa

1.8 – 2.5 GPa

Tensile Strength

10 - 25 MPa

40 – 50 MPa

Elongation at Break

300 - 600 %

10 – 50 %

Impact Strength (Izod)

Good

200 – 400 J/m

Flexural Strength

—

60 – 80 MPa

Hardness (Rockwell R)

—

100 – 115

Thermal

Glass Transition Temperature

-50 to -30 °C

105 °C

Melting Point

N/A (crosslinked rubber particles in thermoplastic matrix)

Amorphous (no true Tm)

Continuous Service Temperature

-50 to 135 °C

70 – 90 °C

Heat Deflection Temperature

50 - 80 °C

85 – 100 °C

Thermal Conductivity

—

0.17 W/m·K

CTE

—

80 – 100 × 10⁻⁶ /K

Electrical

Dielectric Constant

2.8 - 3.3

2.7 – 3.2

Volume Resistivity

10^13 - 10^15 Ohm-cm

10¹⁶ Ω·cm

Dielectric Strength

20 - 30 kV/mm

15 – 20 kV/mm

Surface Resistivity

—

10¹⁵ Ω

Chemical resistance

Acids

Good

—

Bases

Good

Solvents

Good resistance to water, mild acids/bases, and many automotive fluids; swells in many hydrocarbon solvents

—

UV Resistance

Excellent

Poor (unless stabilized)

Acids (dilute)

—

Good

Alcohols

—

Good

Oils & Greases

—

Fair

Gasoline

—

Poor

Acetone

—

Attacks / dissolves

Weathering

—

Poor without stabilizers

Sustainability

Recyclability

Recyclable (thermoplastic processing)

Recyclable (mechanical)

Recycling Code

7 (Other)

Carbon Footprint

Moderate

~3.1 kg CO₂e / kg

Bio-based Content

—

0 %