PVDF Plastic Machining

 

Your guide to PVDF Plastic Machining

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High performance engineering plastic

Outstanding chemical resistance to acids and alkali

Although similar to PTFE, the mechanical features such as tensile stress and compressive strength are notably higher

PVDF (polyvinylidene fluoride) is a high performance engineering plastic. It is a relatively new fluoropolymer best regarded for its chemical resistance. It has very good machinability.

This guide will take you through the main attributes, common applications, notes for designers and suitable finishing and treatments, as well as UK stock sizes and property tables. Don't forget to bookmark the page so you can refer back later.

If you are interested in PVDF machined parts, please scroll to the bottom of the page for more information about our service and to request a quote.

PVDF Guide: Properties, Applications and Design Considerations

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What is PVDF plastic?
 

PVDF (polyvinylidene fluoride) is a high performance engineering plastic. It is a relatively new fluoropolymer best regarded for its chemical resistance. Although similar to PTFE, the mechanical features such as tensile stress and compressive strength are notably higher. Where PTFE trumps PVDF is in resistance to high temperatures (up to 300°C as opposed to 150°C for PVDF).

PVDF has very good machinability and therefore there are few restrictions to consider when machining.

Sharp cutting tools are recommended to avoid chipping during machining.

You may also see PVDF referred to as:

  • TECAFLON™
  • Symalit®
  • Kynar®
 

Industry Examples: Electronics | Medical | Pharmaceutical | Food technology | Mechanical engineering | Chemical & petrochemical | Scientific | Nuclear

 

Typical Components & Applications: Chemical tanks | Laboratory equipment | Solar power systems | Pumps | Food machinery components | Bearings

 
Main Attributes:
  • Outstanding chemical resistance to acids and alkali
  • High density
  • Mechanical strength and toughness
  • Very low moisture absorption
  • Good UV and weather resistance
  • Flame retardant
  • Very good weldability
  • Food compliant
  • Wide operating temperature range (-50°C to 150°C)
  • Excellent dimensional stability
  • Good electrical insulating properties
  • Low thermal conductivity

Note For Designers:

PVDF is an expensive thermoplastic and therefore should be reserved for applications requiring the highest strength, purity and chemical and heat resistance.

If the superior tensile stress and compressive strength are not required, or a higher operating temperature is desired, PTFE may be considered as an alternative.

Can we meet your PVDF machining needs? Contact us now
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PVDF Plastic Machined Parts

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Penta Precision provides the following plastic PVDF machining services: 
  • CNC milling
  • CNC turning
  • Prototypes and batch runs
  • Insert installation
  • Part marking
  • Manual milling
  • Manual turning
  • Machining design advice
  • Design for manufacture service

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