在铸型表面涂刷涂料是生产优质铸件的有效途径。随着用户对铸件质量要求的提高以及涂料生产商品化的形成，人们对涂料的性能也愈加重视。因此，研究开发新型、廉价、优持的涂料就成为必然趋势。累托石是一种新发现的非金属矿物，其结构是由云母和蒙脱石叠加而成，故称“累托石” Applying paint on the mold surface is an effective way to produce high quality castings. As users improve the quality of castings and the formation of commercialization of paint production, people pay more attention to the performance of coatings. Therefore, the research and development of new, cheap, excellent coating has become an inevitable trend. Rectorite is a newly discovered non-metallic mineral whose structure is formed by the superimposition of mica and montmorillonite, so called “Rectorite”