SURFACE-TREATMENT OF NATURAL STONE AND SURFACE-TREATED NATURAL STONE

摘要

PURPOSE: To increase the performance added of a natural stone consisting essentially of volcanic rocks and to widen the application field by surface- treating the natural stone. ;CONSTITUTION: A glaze is applied on the entire surface of a natural stone 5 formed into a thin sheet and consisting essentially of volcanic rocks. The glaze is baked at high temp. to fuse the glaze to the surface of the stone 5, and a thin vitreous cured coating film 6 is formed on the stone 5 surface.;COPYRIGHT: (C)1994,JPO&Japio