Phytatesâwhich are present in whole-grain breads, cereals, legumes, and other foodsâbind zinc and inhibit its absorption [2,12,13]. Thus, the bioavailability of zinc from grains and plant foods is lower than that from animal foods, although many grain- and plant-based foods are still good sources of zinc [2].
Like alkyds, oil-based enamels require six to eight hours to dry to the touch, and you should wait 16 hours or more between coats. Shellac Shellac is sometimes used in faux and special painting techniques.
If, however, you want the top layer hardened you need to wait longer. How long it takes for a coat or layer of oil paint to dry to the stage where you can apply another coat depends on several factors, including the temperature and humidity, the color paint you're using, the type of oil, and specific techniques you're using. Oil paints can be used wet on wet, thick on thin, or wet on dry.