Polypropylene Reinforced with 40% Mineral (PP+M40)

Alternative and trade names
Polyfort™, Hostacom®, TECACOMP®, ALFAFIL®
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It is a 40% mineral filled PP homopolymer with high or low flow, high stiffness and low warpage. It is not intended for medical, pharmaceutical, food and drinking water applications.

This material data has been provided by M-Base.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

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1.2 - 1.25 g/cm³

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Elastic modulus

2.5 - 4.3 GPa

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3.0 - 30.0 %

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Impact strength, Charpy notched

2.0 - 8.0 kJ/m²

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Impact strength, Charpy unnotched

20 kJ/m²

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50 kJ/m²

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Tensile strength

22.0 - 40.0 MPa

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at 3-7% strain



Coefficient of thermal expansion

0.00008 1/K

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Melting point

160.0 - 168.0 °C

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Specific heat capacity

1390 J/(kg·K)

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Thermal conductivity

0.56 W/(m·K)

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UL 94 HB



Dielectric constant

2.8 [-]

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3 [-]

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Electrical resistivity

10000000000000.0 - 100000000000000.0 Ω·m

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Technological properties

Application areas

Under the bonnet components, air conditioning parts, heater housings


40% Mineral Powder


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Processing methods

Injection molding, extrusion