Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 7
To Make Wood Acid- and Chlorine-proof.
Оглавление—Take 6 pounds of wood tar and 12 pounds rosin, and melt them together in an iron kettle, after which stir in 8 pounds finely powdered brick dust. The damaged parts must be cleaned perfectly and dried, whereupon they may be painted over with the warm preparation or filled up and drawn off, leaving the film on the inside.
