Лако-красочные материалы — производство

An unusual application for animal glues is in glass chipping, recently the subject of revived interest. Chipped glass is used for decorative panels in such items as doors, windows, and lampshades. The frost or fernlike design is produced by pouring an animal glue solution of about 30 to 35% solids on a clean, sandblasted glass surface, and allowing the glue to dry under controlled conditions. The glue adheres to the glass, and as the film dries, it contracts, pulling particles of glass from the surface and creating the design. The pattern is controllable, within limits, by choice of glue grade. Use of higher grades makes larger designs, while lower grades produce a finer, more even texture.