随着科学技术的不断发展，新型的模具材料硅橡胶已开始广泛应用在文物修复和复制过程中。早在五六十年代，文物修复、复制所用的模具是以石膏为主要原材料制作的。由于石膏是一种矿物质．质地较硬，在翻制模具时，如若分模不当易出现卡模现象，尤其是翻制一些氧化严重、质地疏 With the continuous development of science and technology, a new type of mold material silicone rubber has begun to be widely used in cultural relics restoration and reproduction process. As early as the fifties and sixties, cultural relics, replicas used in the mold is made of gypsum as the main raw material. Because gypsum is a mineral. Hard texture, when turning the mold, if improper mold easily die phenomenon, in particular, some severe oxidation, texture sparse