Not being so strong, it is just as if you were fasting, and ate a handful of sweetmeats, and drank a glass of good wine, which is an inducement for you to eat your dinner. How You Should Put Cloth on a Panel. When you have done the sizing, take some canvas, that is, some old thin linen cloth, white threaded, without a spot of any grease. And know that this sizing and gessoing call for dry and windy weather. Size wants to be stronger in summer than in winter.
Gilding calls for damp and rainy weather.
How the Flat or a Panel Should be Gessoed With the Slice with Gesso Grosso. If you find any little lump, or seam of any sort, remove it. Put a little porringerful on the porphyry slab, and grind it with this size very vigorously, as if it were a color. Let it dry for two or three days. Then take this iron spatula and scrape over the flat.