HDPE is a cost-effective, semi-crystalline thermoplastic widely used in industrial settings for its good strength-to-weight ratio, machinability, and chemical resistance. It is commonly available in flat sheet and rod form and used in applications requiring moderate wear resistance and structural stability.
Key Properties
- Density: 0.93–0.97 g/cm³
- Working Temperature: -50°C to +80°C
- Tensile Strength: ~4,000 psi
- Machinability: Excellent (saws, routers, mills)
- Chemical Resistance: Broad spectrum, including acids and bases
- Moisture Absorption: <0.01%
- UV Resistance: Limited (can be UV-stabilized)
Common Industrial Application
- Fabricated tanks and chemical containment systems
- Cutting boards and food-grade machine components
- Piping support blocks and spacers
- Protective pads and backer plates
- Die-cut parts and low-load structural panels
Benefits
- Lightweight and easy to machine
- Inexpensive material for structural or low-wear parts
- Excellent for chemical exposure environments
- FDA- and USDA-compliant grades available
- Available in large flat sheets and rods as solid form