Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 56
Jewelers’ Glue Cement.
Оглавление—Dissolve on a water bath 50 parts of fish glue in a little 95-per-cent alcohol, adding 4 parts, by weight, of gum ammoniac. On the other hand, dissolve 2 parts, by weight, of mastic in 10 parts, by weight, of alcohol. Mix these two solutions and preserve in a well-corked flask. For use it suffices to soften it on the water bath.
