A MOLDED ARTICLE, BINDER SYSTEM AND METHOD FOR PRODUCING A COMPOSITE MATERIAL FROM GLASS WOOL AND STONE WOOL

A method for producing a composite material (1), a composite material (1) and a molded article (2) obtained by the method, said method comprising the steps of providing a fibrous stone wool component (4) with a stone component crystallization temperature range, providing a fibrous glass wool component (3) with a glass component melting temperature, mixing and subsequently heating the fibrous stone and glass fibers above the glass component melting temperature and below the stone component upper crystallization temperature limit such that at least some glass fibers melt to form droplets (6) and some stone short fibers undergo crystallization (7) and reducing the size of the fibrous stone (4) and/or glass wool (3) components to obtain stone and/or glass wool clusters (5), wherein the greatest dimension of at lest 50% of the clusters obtained is between 0.01 mm and 13 mm.