Particularly in the serial and injection production steel and aluminium moulds remain very popular, but there is an alternative which may significantly reduce costs of mould manufacturing. The application of composite moulds produced on the basis of resins becomes more popular nowadays. It is so, because resin moulds have the best quality in relation to the low costs of production. The end of the last decade was significant for the development of synthetic materials’ production; we can witness changes occurring in the applicability of composite materials in spheres such as medicine, sailing, automotive or industry. Experts are still improving the resin technology and soon we can expect other interesting solutions and the extension of composites’ applicability.