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Choose the Right Polymer for CNC Machining

Discover the price, material properties, and key applications of the most popular polymers used in CNC machining.

When CNC machining with polymers, how can you begin selecting the most suitable material?


A vast array of polymers, from Acryl to PVC, present unique attributes such as strength, flexibility, heat, and chemical resistance. These properties make them perfect for specific applications. That's why we've prepared this guide.


You'll find a comprehensive overview of the most frequently used polymer materials in CNC machining, including their composition, significant benefits, and typical uses.

Price Overview

The polymer you opt for affects the price you'll pay for your component. In addition to the raw material cost, some polymers may involve additional machining expenses. This table shows you the differences.



Get cost-saving design tips for your CNC machining project.

Material Overview

ABS

Overview: ABS is a common thermoplastic polymer typically used for injection molding applications. It's composed of Acrylonitrile, Butadiene, and Styrene.

Benefits:

• High impact resistance

• Good machinability

• Excellent dimensional stability


Key Applications: Commonly used in automotive components, consumer electronics, and protective equipment.


Acryl (PMMA)

Acryl, often known as PMMA or Acrylic, is a transparent thermoplastic with exceptional optical clarity. It's primarily composed of polymethyl methacrylate.

Benefits:

• Excellent optical clarity

• Good weather resistance

• High light transmission


Key Applications: Used frequently in signage, lighting fixtures, and optical devices.


HDPE

High-Density Polyethylene (HDPE) is a thermoplastic polymer made from petroleum. It is well known for its high strength-to-density ratio.

Benefits:

• High strength-to-density ratio

• Good impact resistance

• Excellent chemical resistance


Key Applications: Often used in the production of corrosion-resistant piping, and plastic lumber.


Nylon 6


Nylon 6 or Polyamide 6 (PA6) is a semi-crystalline polyamide with excellent wear resistance.


Benefits:

• High mechanical strength

• Good fatigue resistance

• Excellent wear resistance

Key Applications: Frequently used in the automotive industry, gears, and sports equipment.


Nylon 6 30GF

Nylon 6 30GF is a 30% glass fiber-reinforced nylon 6. It offers improved strength, stiffness, and temperature resistance.


Benefits:

• High strength and stiffness

• Good dimensional stability

• Excellent temperature resistance


Key Applications: Widely used in automotive under-hood applications, electrical and electronic parts.


PC

Polycarbonate (PC) is a thermoplastic polymer known for its transparency and high impact strength.

Benefits:

• High impact strength

• Good electrical insulation

• Excellent optical clarity


Key Applications: Commonly used for bulletproof glass, eyewear, and compact discs.


PEEK

Polyether Ether Ketone (PEEK) is a semi-crystalline thermoplastic with excellent mechanical and chemical resistance properties.

Benefits:

• High chemical resistance

• Good mechanical properties

• Excellent thermal stability


Key Applications: Often used in the aerospace, automotive, and medical industries.


POM

Polyoxymethylene (POM), also known as Acetal, is a semi-crystalline thermoplastic known for its high stiffness and excellent dimensional stability.

Benefits:

• High stiffness

• Good dimensional stability

• Excellent wear resistance


Key Applications: Frequently used for precision parts requiring high stiffness, low friction, and excellent dimensional stability.


PP

Polypropylene (PP) is a thermoplastic polymer used in various applications. It is known for its toughness and resistance to chemicals.

Benefits:

• High toughness

• Good chemical resistance

• Excellent electrical insulation


Key Applications: Commonly used in packaging, textiles, and automotive components.


PTFE

Polytetrafluoroethylene (PTFE) is a high-performance fluoropolymer known for its non-reactivity, high-temperature resistance, and low friction.

Benefits:

• High-temperature resistance

• Low friction

• Excellent non-reactivity

Key Applications: Often used in non-stick cookware, electrical insulation, and seals.


PVC

Polyvinyl Chloride (PVC) is a widely used synthetic plastic polymer. It's known for its durability and cost-effectiveness.

Benefits:

• High strength

• Good flame resistance

• Excellent chemical resistance


Key Applications: Frequently found in pipes, electrical cable insulation, and signs.


Choosing the Right Polymer


One of the key advantages of CNC machining is the extensive range of materials available. At MakerVerse], we can provide materials beyond our standard offerings. With our global supply chain, we're ready to deliver your needed parts.


If you require further assistance in choosing the right polymer for your CNC machining project, we're here to help. Upload your part and specify your request in the comments when requesting a quote. Our team of experts is eager to assist.


Get your CNC machining project started now.

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