Comparative testing of the direct-on enamel for tubes

Comparative tests of industrial and synthesized fluorine-free primerless enamels have been carried out. It has been established that fluorine-free enamels of new compositions are superior to existing analogues in a number of properties (firing range, chemical resistance, impact strength, etc.). The enamels are environmentally friendly, have passed extensive industrial tests and are accepted for production at enterprises that produce steel pipes, enameled on the inner surface. Tab. 2, bibliography: 3 titles.