Engineering plastics for CNC-machined insulating components, sliding parts and lightweight fixtures. POM, PA, PTFE and PEEK differ in stiffness, moisture response, friction and temperature capability. Select the grade from the operating environment.
How should I select the grade?
POM, PA, PTFE and PEEK differ in stiffness, moisture response, friction and temperature capability. Select the grade from the operating environment. Material availability, stock size and certificate requirements are confirmed during quotation; a listed grade is not a stock guarantee.
What affects machining and inspection?
Review conditioning, thermal expansion, clamping distortion and dimensional stability. Functional tolerances depend on part geometry, material condition, fixturing and measurement method, not only the material family.
What should I specify for finishing?
State the finish standard, thickness, color or texture, masking and functional surfaces. Consider coating build in fits and threads. Approve any material or finishing substitution in writing.
Material quotation checklist
Send the exact grade and condition, 2D drawing, STEP model, quantity, critical features, service environment and traceability requirements. Tecpreva can review machining suitability and proposed alternatives before production.