The raw materials of HPF Minerals provide valuable services as fillers in many different thermoplastic applications. The reason: the requirements for modern plastics, for example for the automotive industry, are steadily increasing. The polymers alone can no longer meet the required profiles. Therefore they have to be reinforced with high-quality, functional fillers based on the granular cristobalite, the needle-shaped wollastonite and the platelet-shaped mica muscovite and phlogopite. These High Performance Fillers make a decisive contribution to improving the mechanical and thermal properties of the compounds. The use of these functional fillers leads to an increased scratch resistance, to a reduction in mechanical and thermal warping and to an improvement in the tensile strength or the tensile modulus while maintaining the impact resistance in the polymer system and thus in the finished part.

When warping is required, short-needled aminosilan-coated wollastonite powders TREMIN^® 283 have been successfully used as functional fillers for polyamides for many years. With the long-needle TREMIN^® 939 grades, even higher stiffness can be achieved. The thus reinforced polyamides offer a variety of possibilities for the construction and are used for example in wheel caps, engine covers, air filter housings and electrical equipment parts. They are characterized by excellent stiffness, high heat and temperature resistance and excellent dimensional stability.
Furthermore high impact strength and excellent lacquer adhesion are also achieved.

If films are used to package fruit, vegetables, fish, sausage or cheese, anti-blocking agents are used more or less as a ‘spacer‘ to more easily separate the sides of the film from one another. The effectiveness of the anti-blocking additive is mainly dependent on the properties of the mineral used and the correct grain size. Visual requirements, such as transparency, gloss and opacity, are often added to the mechanical properties. After all, consumers want to see what they buy and therefore gladly reach for transparent plastic packaging.

Greenhouses made of plastic film offer an economical solution for the intensification of agriculture. This is becoming ever more necessary on account of growing cities and shrinking agricultural areas. Requirements such as UV and IR absorption are the predominant feature in the use of films in agriculture. Sunrays should penetrate the agricultural film slightly to stimulate plant growth. However, the heat should not escape again during the night, but be saved in the greenhouse to compensate for temperature differences and to ensure a uniform temperature for healthy growth of the plants. MICROSPAR^® 1380-600 exhibits high transmission values in the range 400 – 700 nm. This range describes the photosynthetically effective radiation.