Polypropylene
At a Glance
Process
Lead Time
Colors
Tolerance
Price
Applications
About the Material
Polypropylene (PP) resists most solvents and chemicals, which makes it a wonderful material to manufacture laboratory equipment and containers for a variety of applications. PP also offers good fatigue strength.
Material Properties
Polypropylene
Yield Strength (tensile)
Elongation at Break
Hardness
Density
Maximum
Temp
McMaster Part Number
Material Finish
Polypropylene is a semi-clear white color by default, but can also come in opaque white on request.
Design Recommendations
Min Wall Thickness
Min End Mill Size
Min Drill Size
Max Part Size
Undercuts
Radii : Depth
0.5 mm
0.8 mm
(0.03 in)
(0.03 in)
0.5 mm
(0.02 in)
(0.02 in)
1200 x 500 x 152 mm [x,y,z] (mill)
152 x 394 mm
[d,h] (lathe)
152 x 394 mm
[d,h] (lathe)
Square profile, full radius, dovetail profiles
Depth must not exceed 12x drill bit diameter.
For end mills, depth must not exceed 10x tool diameter.
For end mills, depth must not exceed 10x tool diameter.
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.
Related Resources
Engineer's Guide to CNC Machining for Prototyping Hardware
Fictiv CNC Material Datasheet