Plastic material guide
Polycarbonate (PC) CNC Machining Service
Polycarbonate is considered for tough, transparent or translucent parts. Grade, coating, UV package and chemical exposure determine whether it fits the application.
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When Polycarbonate (PC) fits — and when to pause.
Protective covers
Define impact, transparency and scratch criteria.
Machined prototypes
Use representative stock if the final part will be molded.
Chemical contact
Check cleaners, fuels and assembly chemicals against the grade.
Use a complete material designation.
The following examples are common ways buyers describe the family. They are not a stock list and they do not authorise substitution.
- Unfilled polycarbonate stock by supplier gradeConfirm supplier grade, condition, stock form and required documentation.
- Optical or UV-stabilised grade where requiredConfirm supplier grade, condition, stock form and required documentation.
- Coated sheet only with coating system specifiedConfirm supplier grade, condition, stock form and required documentation.
RFQ material line
Polycarbonate (PC) · PC supplier grade, colour and optical requirement · stock form · quantity · required certificates · permitted substitutions.
If an application approval matters, name the regulation, edition and acceptance evidence.
Plan machining around the material behaviour.
Stress cracking
Control heat, coolant and assembly stress.
Optical surfaces
Protect faces and define the viewing zone.
Threads and fasteners
Review edge distance and sustained load.
Specify the final surface and dimensions.
Mechanical polishing
Define the required faces and distortion limits.
Hard coating
Specify supplier system, adhesion and final dimensions.
As-machined
Set tool-mark, haze and edge criteria.
Separate material identity from dimensional inspection.
Purchase specification, supplier documents, lot traceability and an agreed identification or test method where appropriate.
Drawing, datums, critical characteristics, inspection conditions and the required report format.
Use the relevant tester only when the drawing defines the parameter, method, location and acceptance range.
Reference and quotation boundary.
External material reference: SABIC LEXAN polycarbonate resin ↗
The source supports general material context. It does not establish Prolean stock, achievable tolerances, certification scope, price or delivery for a specific part. Those are confirmed in the quotation.
Technical review updated October 2026.
Polycarbonate (PC) machining questions.
How should Polycarbonate (PC) be specified for machining?
State the complete PC supplier grade, colour and optical requirement, the stock form, permitted substitutions and required documents. Add the drawing, quantity, finish and inspection requirements.
Does a listed grade mean it is stocked?
No. The examples help structure an RFQ. Availability, substitutions, price and delivery are confirmed for the project.
How are tolerances confirmed?
Tolerances depend on geometry, material condition, feature size, quantity, finishing and inspection conditions. Mark critical dimensions and datums; the quote confirms what can be held.
Can material documents and inspection reports be supplied?
State the required certificate, traceability and dimensional or test report with the RFQ. The available document set and test method are confirmed before production.
Bring the drawing and material into one review.
Send the CAD model or drawing, quantity, material designation, service conditions, finish and acceptance requirements.
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- MaterialComplete grade, condition, stock form and documents.
- PartCritical dimensions, datums, finish and inspection.
- ProjectQuantity and requested delivery date.