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Green Isofil® KHV 4101U PK

Positive Plastics KIT1

What is it?

A mix of post-consumer recycled polypropylene (PP) and virgin polypropylene is compounded with 20% talc mineral filler to create a strong and stiff plastic compound that is UV stabilized.
The post-consumer polymer content is at least 50%.

Material properties

  • Tensile strength (MPa): 22 

  • Flexural modulus (MPa): 2200

  •  Elongation at break (%): 35

  • Density (Kg/dm3): 1,07

Positive Plastics_Green Isofill

Technical benefits

Adding the mineral filler to the polymer increases the stiffness, dimensional stability, scratch resistance, and heat resistance.

Look and feel

Adding talc to the compound produces a slightly stiffer product, with a reduced gloss level compared with unfilled PP. The colour of this product can be customised within the limitations set by the high content of post-consumer recycled PP.

Environmental benefits

The use of post-consumer recycled polypropylene reduces the environmental impact of the material. This compound has a minimum post-consumer polymer content of 50% and is recyclable.


It can be used for both functional as well as aesthetical components in the furniture and appliances industries.

Cosmetics Packaging

Why we chose this material 

Polypropylene is one of the most widely used plastic materials and the Green Isofill® grades from Sirmax can replace virgin polypropylene in many applications. We see the compounding of recycled feedstock and minerals as a successful upgrade of otherwise downcycled materials.

Why you should consider this material

  • You are searching for a PP grade with a high percentage of mechanically recycled PCR content.

  • Your application would benefit from enhanced mechanical properties better than those of unfilled PP, even of virgin grades.

About the manufacturer

Sirmax produces a variety of polypropylene compounds, engineering plastics, thermoplastic elastomers, and recycled polymers, which enables them to cover many different application sectors around the globe. Uses include automotive, appliance, power tools, construction, and electronics. Sirmax is continually adding new circular compounds and biopolymers to its extensive portfolio.

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