ELLECI sink MASTER 400 series. Metaltek is a composite material made of natural granite base and acrylic resin, to which were added to metal particles that give a great finish from the aesthetic impact. The new colors (chrome, iron, aluminum, titanium and copper) enhance the effect and make the metal sink can be easily matched to any steel appliances and other kitchen components. The chemical composition of the mixture Granitek is the union of grains of granite, bound together by colorless acrylic resin. The selection of the granite color and the variation of the combination of its various colors determine the color of the finished product. A sink Granitek keep a visual and tactile surface effect similar to that of natural stone. This aspect that makes it even more attractive aesthetics and product design.