Comparison
rHDPE PIR Colored vs PETG
A side-by-side comparison of Recycled High-Density Polyethylene Post-Industrial Recycled Colored and Polyethylene Terephthalate Glycol.
Physical
Density
0.940-0.965 g/cm³
1.27 g/cm³
Water Absorption (24h)
0.01-0.03 %
0.13 %
Transparency
Opaque
Transparent
Shrinkage
1.5-3.0 %
0.2 – 0.5 %
Mechanical
Young's Modulus
0.9-1.4 GPa
2.1 GPa
Tensile Strength
18-33 MPa
50 MPa
Elongation at Break
200-550 %
120 %
Impact Strength (Izod)
8-22 J/m
100 J/m
Flexural Strength
—
70 MPa
Thermal
Glass Transition Temperature
-120 °C
80 °C
Melting Point
125-135 °C
—
Continuous Service Temperature
60-80 °C
65 °C
Heat Deflection Temperature
38-48 °C (0.45 MPa)
70 °C
CTE
—
68 × 10⁻⁶ /K
Electrical
Dielectric Constant
2.25-2.35
3.3
Volume Resistivity
>10^15 Ohm·cm
10¹⁴ Ω·cm
Dielectric Strength
15-25 kV/mm
—
Chemical resistance
Acids
Excellent
Good
Bases
Excellent
Fair
Solvents
Good resistance to most organic solvents at room temperature
—
UV Resistance
Moderate (can degrade with prolonged UV exposure)
Fair
Alcohols
—
Good
Oils
—
Good
Sustainability
Recyclability
Highly Recyclable
Recyclable
Recycling Code
2 (HDPE)
1
Carbon Footprint
Lower than virgin HDPE
~2.7 kg CO₂e / kg
Bio-based Content
—
0 %