See also Etching and Inks.

Composition for Writing on Glass

To obtain mat designs on glass, take sodium fluoride, 35 parts; potassium sulphate, 7 parts; zinc chloride, 15 parts; hydrochloric acid, 65 parts; distilled water, 1,000 parts. Dissolve the sodium fluoride and the potassium sulphate in half the water; dissolve the zinc chloride in the remaining water and add the hydrochloric acid. Preserve these two solutions separately. For use, mix a little of each solution and write on the glass with a pen or brush.

Ink for Writing on Glass

Shellac............ 20 parts

Alcohol............ 150 parts

Borax............. 35 parts

Water............. 250 parts

Water - soluble dye sufficient to color. Dissolve the shellac in the alcohol, the borax in the water, and pour the shellac solution slowly into that of the borax. Then add the coloring matter previously dissolved in a little water.