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Positive Plastics KIT3

What is it?

A grade of polypropylene compounded with 30% carbon fibre. The origin of the carbon fibres is the dry cut-offs from carbon fibre thermoset part production. The carbon fibres are industrial waste. Although the base material is PP, the carbon fibre reinforcement creates unique mechanical properties at low density. It is ideal for products or components that require high strength and stiffness but also benefit from low weight. WIC Carbon Fibre Products are also available with PA6, PA66 and PA66+6I/6T as the base polymer.

Material properties

  • Tensile Modulus [MPa] 13000

  • Tensile Strength [MPa] 93

  • Charpy Notched Impact Strength, +23°C  [kJ/m2 ]  10

  • Charpy Notched Impact Strength, -40°C  [kJ/m2 ]  5

  • Density [kg/dm3]  1,07

  • Melt Volume-Flow Rate [cm3/10min] 6 (230°C/5kg)

Positive Plastics KIT3_Wic PP30

Technical benefits

The tensile strength and modulus outperform most heavily glass-filled engineering polymers. The density of the material is only slightly over 1 kg/dm3, which is an advantage, allowing the end product to remain at low weight. The material is electrically conductive. Compared with glass fibre-reinforced materials with equal mechanical properties, WIC compounds offer 20-30% weight-saving potential.


Look and feel

By comparing the sample with other samples, the stiffness/weight ratio is evident. Shiny surfaces appear matte because of the carbon reinforcement.


Environmental benefits

Recycled carbon fibre has low GWP (Global Warming Potential) compared with prime carbon fibre. Polypropylene as the base material has a low carbon footprint, and overall, this material shows a CO2-Footprint of 1,26 (kg CO2 eq) according to GaBi (DIN EN ISO14040/14044). Lightweight end product saves energy in transportation, especially in cars.



The material suits structural parts in automotive, household, sports, and leisure lightweight products. Some grades are also used for industrial applications in which material requirements are a combination of high strength and electrical properties (ESD).

Kitchen Appliances
Sports Goods

Why we chose this material 

Recycled carbon fibre, mechanical performance, low density... we see this as an exceptional material and are very happy to have it in the kit.


Why you should consider this material

  • You need high mechanical performance,; strength and stiffness.

  • Your product benefits from low weight.

  • Electrical conductivity is required.


About the manufacturer

Wipag is a German company that, for 30 years, has specialized in recycling plastic into high-quality secondary raw materials for various industries. These compounds, made using innovative and in-house developed technologies, can be used as substitutes for virgin plastics, reducing the need for new plastic production and promoting sustainability. WIPAG has been part of the globally active Otto Krahn Group since 2018. In addition to WIPAG, the family-owned group of companies also includes the plastics distributor ALBIS and the plastics compounder MOCOM, as well as KRAHN Chemie and KRAHN Ceramics.

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