GUM WATER (n.)
ANONYME, The Excellency of the Pen and Pencil, Exemplifying The Uses of them in the most Exquisite and Mysterious Arts of Drawing, Etching, Engraving, Limning, Painting in Oyl, Washing of Maps & Pictures. Also the way to Cleanse any Old Painting, and Preserve the Colours. Collected from the Writings of the ablest Masters both Ancient and Modern, as Albert Durer, P. Lomantius, and divers others. Furnished with divers Cuts in Copper, being Copied from the best Masters, and here inserted for Examples for the Learner to Practice by. A Work very useful for all Gentlemen, and other Ingenious Spirits, either Artificers or others, London, Dorman Newman, 1688.1 quotations
Of Limning in Water-Colours, The Third Book, Chap. I, Of the necessaries belonging to Limning, p. 83-85
SECT. I. Of Gums and Gum waters used in Limning.
The principal Gum is Gum-Arabick ; get the best that may be, which you shall know by the whiteness and clearness ; if it be yellowish, of an Amber colour, it is naught.
To make Gum-water hereof, do thus […].
Gum-Lake is a compounded Gum made of many ingredients, as of whites of Eggs beaten and strained, of Honey, Gum of Ivy, strong Wort ; these ingredients mingled together will at last run like an Oyl, which at last will congeal and be hard. Trouble not your self to make it, but buy it ready made ; chuse it as you do the Gum-Arabick by the clearness, and then you need not fear it. […].
Of this Gum you may make a Water, that whatsoever you write therewith you may lay in Gold.
The manner of making the Water is thus […].