CNC Machining Materials
High-density polyethylene (HDPE) is a slippery plastic that is often machined into plugs and seals. It is also an excellent electrical insulator as well as being moisture and chemically-resistant.
Elongation at Break
McMaster Part Number
HDPE is a naturally opaque white because of its crystalline structure, but is also available dyed black in more limited stock sizes. It has a waxy finish leveraged for low-friction applications.
Min Wall Thickness
Min End Mill Size
Min Drill Size
Max Part Size
Radii : Depth
Cost Saving Tip
To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.
Can you CNC HDPE?
Yes, you can CNC HDPE. High-density polyethylene (HDPE) is a slippery plastic that is moisture and chemical-resistant.
What is HDPE used for?
HDPE is often machined into plugs and seals. It is an excellent electrical insulator that has a waxy finish suited for low-friction applications.
What are the advantages of HDPE?
Advantages of HDPE include good low temperature impact resistance and excellent chemical resistance. It is a high-quality, stiff and durable material that is affordable
What are the disadvantages of HDPE?
The disadvantages of HDPE are that it is susceptible to stress cracking and higher mould shrinkage, and also has lower stiffness compared to polypropylene.