CNC Plastic Materials

Compare ABS, acrylic, Delrin, nylon, PP, HDPE, PC, PEI, ULTEM, PEEK, POM, and other engineering plastics for CNC machined parts.

PRECISION PLASTIC MACHINING

CNC Plastic
Manufacturing

High-precision machining for engineering plastics—optimized for lightweight, corrosion resistance, and specialized performance requirements across industries.

CNC Plastic Precision Machining
±0.01mm
Tolerance
30+
Plastic Types
99.5%
Quality Rate

Engineering Plastic Materials

Comprehensive selection of high-performance plastics for diverse applications

ABS

Excellent impact resistance and toughness for prototypes and functional parts.

Acrylic

Optical clarity and aesthetic appeal for displays, lenses, and signage.

Delrin (POM)

Low friction and high stiffness for gears, bearings, and sliding parts.

Nylon

Excellent wear resistance and durability for mechanical components.

Standard Plastics

Specialty Plastics

Plastic Material Advantages

Engineering plastics offer unique benefits for precision applications

Lightweight

Plastics are significantly lighter than metals, reducing weight in aerospace, automotive, and consumer products.

  • 70% lighter than aluminum
  • Reduces assembly weight
  • Improves energy efficiency

Corrosion Resistant

Most plastics resist chemicals, moisture, and environmental factors that corrode metals.

  • Chemical resistance
  • Moisture resistance
  • UV stability options

Electrical Insulation

Excellent dielectric properties make plastics ideal for electrical and electronic components.

  • High dielectric strength
  • Arc resistance
  • EMI shielding options

Plastic vs Metal Applications

Choose the right material for your specific requirements

Application
Recommended Plastic
Key Benefits
Medical Housings
ABS / PC
Sterilizable, chemical resistant, lightweight
Aerospace Components
High temp resistance, lightweight, flame retardant
Electrical Insulators
Excellent dielectric properties, wear resistant
Food Contact Parts
PP / HDPE
FDA approved, chemical resistant, non-toxic

Need Plastic Selection Guidance?

Our material experts will help you choose the optimal plastic based on chemical exposure, temperature range, and mechanical requirements.

Material Category Guide

CNC Plastic Material Selection

Engineering plastics are selected for weight reduction, insulation, chemical resistance, low friction, clarity, and temperature performance. Use this page to compare material choices before deciding the final CNC milling, turning, surface finishing, and inspection route.

Selection FactorWhat to Confirm Before Quoting
Part functionLoad, sliding contact, sealing, electrical insulation, heat exposure, cosmetic needs, and expected life.
Machining process3-axis, 4-axis, 5-axis milling, turning, Swiss-type machining, drilling, tapping, boring, or reaming.
Dimensional controlCritical tolerances, datum structure, wall thickness, flatness, true position, and inspection access.
FinishingAnodizing, plating, passivation, polishing, coating, deburring, or other treatments that may affect final size.

Material FAQ

CNC Plastic Material Questions

How do I choose the right plastic for CNC machining?

Start with the part function, load, temperature, corrosion or chemical exposure, tolerance, surface finish, and target cost. Then compare the material's machinability and inspection risk.

Does material choice affect machining cost?

Yes. Harder, tougher, abrasive, or heat-sensitive materials often require slower cutting, more careful fixturing, special tooling, and additional inspection.

Can MTSPi help with grade selection?

Yes. Send the application, drawings, material preference, quantity, and finish requirements. We can suggest practical options before quoting.

Should finishing be planned before machining?

Yes. Anodizing, plating, polishing, passivation, coating, and deburring can affect dimensions, cosmetics, and inspection acceptance.

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CNC Plastic Materials

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