Comparison

rHIPS Impact Resistant vs PETG

A side-by-side comparison of Recycled High Impact Polystyrene and Polyethylene Terephthalate Glycol.

Physical

Density
1.04-1.06 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.03-0.05 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
0.5-0.8 %
0.2 – 0.5 %

Mechanical

Young's Modulus
1.5-2.5 GPa
2.1 GPa
Tensile Strength
20-35 MPa
50 MPa
Elongation at Break
5-20 %
120 %
Impact Strength (Izod)
40-100 J/m
100 J/m
Flexural Strength
70 MPa

Thermal

Glass Transition Temperature
90-100 °C
80 °C
Melting Point
N/A (amorphous)
Continuous Service Temperature
60-70 °C
65 °C
Heat Deflection Temperature
70-85 °C (0.45 MPa)
70 °C
CTE
68 × 10⁻⁶ /K

Electrical

Dielectric Constant
2.5-2.7
3.3
Volume Resistivity
10^16-10^18 Ohm·cm
10¹⁴ Ω·cm
Dielectric Strength
15-20 kV/mm

Chemical resistance

Acids
Good resistance
Good
Bases
Good resistance
Fair
Solvents
Poor resistance to aromatic and chlorinated hydrocarbons
UV Resistance
Poor
Fair
Alcohols
Good
Oils
Good

Sustainability

Recyclability
Recyclable (check local facilities)
Recyclable
Recycling Code
6 (PS)
1
Carbon Footprint
Lower than virgin HIPS
~2.7 kg CO₂e / kg
Bio-based Content
0 %