Tank components
Machined elements for tanks and chemical installations.
Plastic · Custom parts
CNC machining
of polypropylene.
Lightweight components for chemical equipment. We manufacture custom polypropylene parts with low moisture absorption and electrical insulation.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- PP Plastic
01 / Why choose this material
Properties and uses
of polypropylene.
Lightweight polypropylene with good resistance to numerous acids and bases. It is useful for chemical components and parts with moderate mechanical requirements.
Polypropylene or PP is a low-density polyolefin. It is used in parts with moderate mechanical requirements and contact with compatible chemical agents. Its stiffness is lower than that of POM or PET, an important aspect for supports and fits.
Learn about the CNC machining process ↗Polypropylene properties
Mechanical reference · Proto&Go! material datasheet
- Indicative density
- 0.91 g/cm³
- Tensile strength at yield
- 35 MPa
- Elastic modulus
- 1,3 GPa
- Thermal conductivity
- 0,22 W/(m·K)
- Presentation
- Semi-finished for CNC
It does not resist all solvents. Concentration, temperature, and load determine compatibility; its stiffness is lower than that of POM or PET. The added values are references from the published PDF; the supply grade and testing may change them.
Material datasheets
- Lightweight
- Electrical insulator
- Good chemical resistance depending on the agent
- Low moisture absorption
Polypropylene applications
Conduit elements
Conduit parts with defined contact requirements.
Chemical equipment supports
Supports for equipment with moderate loads.
Insulating parts
Electrical isolation separators and components.
02 / A choice based on usage
Choose polypropylene
according to your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
Chemical compatibility
Indicate the product, concentration, and temperature. PP resists numerous acids and bases, but not any substance.
02
Rigidity and thickness
Design supports and walls to limit deflection and deformation under load.
03
Insulation
The standard grade is electrically insulating. Assembly needs and the environment determine its suitability.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of polypropylene.
Material and process define the surface. These are the key factors for specifying your part's appearance.
Machining finish
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
Geometry and surfaces
For functional surfaces, define roughness and tolerances in the drawing. Feasibility is reviewed based on grade and geometry.
Your part requirements
Include the expected appearance and usage conditions in your request to confirm the quote.
04 / From design to quote
CNC machining
of polypropylene.
Milling and turning allow manufacturing polypropylene parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in polypropylene.
The price to machine polypropylene depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in polypropylene.
Properties, applications, and manufacturing: answers to prepare your request.
What is polypropylene and what properties does it have?
Lightweight polypropylene with good resistance to numerous acids and bases. It is useful for chemical components and parts with moderate mechanical requirements. It does not resist all solvents. Concentration, temperature, and load determine compatibility; its stiffness is lower than that of POM or PET. The added values are references from the published PDF; the supply grade and test can change them.
What parts can be manufactured in polypropylene?
We can manufacture tank components, piping elements, chemical equipment supports, and insulating parts. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.
Does polypropylene resist all chemicals?
No. PP has good resistance to numerous acids and bases, but compatibility depends on the agent, concentration, and temperature. For a process part, provide those data and the exposure time before confirming the material.
PP or POM for manufacturing a rigid precision part?
POM is usually a more suitable option when stiffness and mechanical precision are paramount. PP stands out for its lightness and resistance to certain chemical agents. Load, thickness, and environment must guide the comparison.
Does machined polypropylene absorb moisture?
PP presents low moisture absorption, an advantage for some equipment and insulating components. That does not prevent thermal expansion or deformation under load. In a fit, it is also necessary to consider temperature and geometry.
How much does it cost to machine a polypropylene part?
The price to machine polypropylene depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload the 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a polypropylene part?
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a polypropylene part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in polypropylene.
Upload the 3D file. We review feasibility and send you the quote.