Investigations to develop sol-gel coatings on lead crystal glasses were carried out to reduce the migration of lead into beverages. Three compositions were tested as coating materials. The best result was obtained from the B2O3/SiO2 system. The results showed that the coating reduces the leaching of lead to some percent of the value of uncoated surfaces and does not lose its effectiveness after 20 cycles in a heavy duty laboratory dishwasher.
Origin
Inst Fur Neue Materialien Gem Gmbh, Frg
Journal Title
Fundamentals Of The Glass Manufacturing Process 1991. Esg Conf. 96-99
Sector
Domestic glass
Class
D 182