HDPE is a light weight thermoplastic made from petroleum. Although only marginally more dense than LDPE it does have a higher tensile strength and can withstand somewhat higher temperatures. However unlike Polypropylene in cannot handle autoclaving. HDPE is resistant to many different solvents and chemicals. Common uses include: bottle caps, fuel tanks, milk jugs, and light load ball valves. It can be recycled with a class “2” code.

Specific Gravity
.95 g/cc
Max Operating Temperature
180 F / 82 C
Hardness, Shore
Heat Deflection Temperature
170 F / 76 C
Tensile Strength
4600 psi
Water Absorption
24 hr 0%
Melting Point
260 F / 125 C
Dielectric Constant