10-13-2022, 09:22 AM
Cadmium oxides.
Household vinegar, citric acid or sodium bisulfate solutions will easily remove. Cadmium oxides are toxic, make no dust, wash hands after treatment, let liquid wastes go down drain, dispose of any solid wastes in trash. That particular part may have From from a supplier that used a more heavily plated metal. Careful, slotted plastic cursor panel is made of celluloid. Keep heat and ANY petroleum solvent away...
In time, the cadmium flowers will reappear, seal with either white shellac or clear lacquer. Keep lacquer away from the celluloid.
Household vinegar, citric acid or sodium bisulfate solutions will easily remove. Cadmium oxides are toxic, make no dust, wash hands after treatment, let liquid wastes go down drain, dispose of any solid wastes in trash. That particular part may have From from a supplier that used a more heavily plated metal. Careful, slotted plastic cursor panel is made of celluloid. Keep heat and ANY petroleum solvent away...
In time, the cadmium flowers will reappear, seal with either white shellac or clear lacquer. Keep lacquer away from the celluloid.
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
