The plastic and paint application tests for milled talc products from Haaponen’s talc ore have been completed

Application tests were performed with jet-milled talc products further processed from talc concentrate of the enrichment tests. The products were compared with commercial talc products of the same particle size and distribution.

Plastics application testing was performed with jet-milled Nordic Talc product with an average grain size of approximately 2.4 μm. The tensile bars were prepared by injection molding using a granulated talc-polypropylene mixture with a talc mass fraction of 15%. The tensile bars were subjected to impact strength, flexural and tensile properties tests. Based on the test results, the properties of Nordic Talc’s pilot product are very competitive with the commercial talc product used as a reference.

Correspondingly, jet-milled Nordic Talc was used in paint testing to produce a water-borne primer. The average grain size of talc was about 4.5 μm. According to the results, the properties of the Nordic Talc product corresponded to those of a commercial talc product, and it is suitable for use in paint applications.

“I am very pleased with the excellent results at this early stage of product development. The results confirm the suitability and potential of Haaponen’s talc ore. We are confident in continuing to develop the project,” says Erkki Kuronen, CEO of the company.

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Part of the Tulikivi Group, Nordic Talc Oy aims to convert the Suomussalmi soapstone factory into a talc plant and ensure the industrial utilization of talc reserves and the continuation of operations.

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