History of foundry, as metal casting process, has a significant meaning regarding the overall history. With the gradual development of foundry processes, as well as improvement of technology and mechanical procedures, led to the creation of several technological epochs. Products of foundry are a part of our lives. The quality of mold has a significant impact on surface quality of the final casting. It is important to choose the most advantageous form of casting and type of mold, such as permanent, semi-permanent or single use, according to its size, shape and weight. In the process of production, uses second generation mold compounds, therefore consisting of molding sand and binder, which consists of furan resin and hardener. The ratio of these two components has a significant impact on treatment time and thus on overall producibility. Objective of mentioned experiments were to determine the ideal binder component ratio, and the ratio influence on treatment time, thus optimizing achieved results of treatment times and final strengths of molding mixtures.Keywords: foundry, moulding mixture, casting defect, furan
© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.