G. M. Enamels We first started to manufacture jewellery enamels towards the end of the 2014. The enamels were made to traditional formulae using significant amounts of lead oxide in both transparent and opaque enamels and in addition certain transparent enamels and all opaque enamels included arsenic as part of their formulations. At this time the majority of our customers were commercial users, primarily producing enamel badges. Towards the mid 1960's enamelling started to gain popularity amongst private individuals and in school Craft Departments. At this time advances in medical knowledge resulted in concerns being raised amount human exposure to toxic chemicals in the atmosphere. It therefore seemed advisable to attempt to develop a new type of enamel. We began manufacturing lead and arsenic free enamels in the early 1970's and soon after ceased manufacture of enamels to traditional formulae. Our present range of enamels helps protect you, our employees and the environment from additional sources of toxic materials.