Lightness and processing

Reduce weight, increase performance: The advantage of lightweight HPPs

In an industrial world that is increasingly demanding in terms of performance and durability, lightweight materials are becoming a strategic lever. Combined with ease of processing, they facilitate the design of optimized technical components, while reducing carbon footprints and manufacturing costs.

Why choose a lightweight, easy-to-process polymer?

Reducing the weight of a part means:

  • Lowering energy consumption
  • Reducing mechanical wear
  • Facilitating transport, assembly and maintenance
  • Meeting eco-design requirements

High-performance polymers (HPP), 5 to 8 times lighter than metals, offer superior specific rigidity compared to standard plastics, while being highly processable.
 

Lightweight HPP Polymers - DEMGY selection

Product

 

Density (g/cm³)

 

Processing

 

Benefits

 

Applications

 
PEEK
(KetaSpire® KT820)
 

~1,3

 

Injection molding, machining

 

Very rigid

 

Aerospace, implants

 
Torlon® 4203
(PAI)
 

~1,4

 

Machining, injection

 

Low friction

 

Moving parts, bearings

 
Vespel® SCP-5000
(PI)
 

~1,43

 

Machining only

 

Extreme stability

 

Space, cryogenics

 
PPS Ryton® R4
 
 

~1,6

 

Injection

 

Good compromise

 

Automotive, chemical

 
PVDF Kynar® 1000 HD
 
 

~1,78

 

Injection molding, extrusion

 

Chemical resistance

 

Pharma, fluids

 
PTFE Teflon® FEP-9302
 
 

~2,15

 

Molding, extrusion

 

Very low friction

 

Wiring, coating

 
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High-precision processing

HPP machining

  • Tight tolerances and dimensional stability
  • Ideal for complex parts in short runs

Technical injection molding

  • Repeatability, fiber reinforcements (carbon, glass)
  • Short cycle times, high yield

Extrusion & molding

  • Films, sheets, tubes with dimensional control

Additive manufacturing

  • Optimized geometries without molds
  • Rapid prototyping of functional parts
     

HPPs vs. standard plastics vs. metals

Criteria

 

Standard plastics

 

Metals

 

HPPs

 

Density

 

Low

 

High

 

Low

 

Mechanical resistance

 

Low to medium

 

High

 

Medium to high

 

Machinability

 

Good

 

Difficult, expensive

 

Excellent

 

Processing

 

Limited

 

Slow, heavy

 

Versatile

 
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Examples of industrial applications

Aeronautics & Space

  • Satellite components, insulating jackets
  • Vespel® SCP-5000: the benchmark for cryogenic environments

Automotive & mobility

  • Connector supports, under-hood parts
  • PPS Ryton® R4: lightness and rigidity for electrification

Medical & Pharma

  • Injected parts, surgical tools, implants
  • Medical PEEK: weight reduction + radiotransparency

Precision mechanics

  • Bearings, slideways, gears
  • Torlon® 4203: self-lubrication and exceptional rigidity
     

DEMGY: from material to processed part

Advice & choice of materials

  • Selection based on your mechanical, thermal and economic constraints

Multi-process processing

  • 5-axis machining, injection, compression, 3D HPP

Rapid industrialization

  • Validated prototypes, traceability, REACH, FDA, ISO compliance
     

Conclusion

To reconcile lightness, optimized processing and technical resistance, HPPs represent a strategic alternative to standard metals and plastics. DEMGY offers you a complete range of engineering polymers, adapted to your most demanding industrial constraints.

Associated products