Gesso, its uses in drawing, definition, characteristics and best types. How to prepare any surface for drawing?
a definition :
Gesso is a mixture between paint and finesse with chalk powder in addition to binders which work to prepare various surfaces to prepare them for painting, especially on canvas panels before using acrylic, as it acts to create an insulating layer to prevent absorption of colors through the paper or fabric, to facilitate the application of brushes to the surface.
Uses of gesso in drawing:
Its advantages are that it works perfectly in the production of mixed paintings, that is, it allows you to expand the uses of materials and modify the coordination between them, as well as the diversity of colors, since it exists in a transparent form and in two colors, white. and black, to include various surfaces, whether smooth or rough, in addition to its use on all drawing surfaces. It can also be used as a layer for drawing on glass, metal, pottery or plastic.
Gesso works to set colors and hold them in place by closing small pores, resulting in less color usage. Its consistency can be diluted with water or to make its consistency thick. You can mix it with white acrylic or color it to blend with the surface by adding acrylic color. You can apply it with a sponge, namely a granulator or a brush. .
Gesso has some disadvantages that you may encounter when it needs to be addressed, including the fact that when added to paper it can add weight or thickness to it, which will affect your coloring later. Additionally, due to pore closure, some colors may lose their color intensity. Therefore, before proceeding with the basic drawing, try experimenting either with the paper or with the colors.
Coloring is not done after application. Instead, we wait for it to dry. The duration varies depending on each surface and the density of its layer. The thicker the layer, the more delicious it is. It is also not compatible with watercolor, although they are very thick, it is not recommended. You can use it as an alternative to white, especially when using funds. It is available in all bookstores and can also be made at home, although it can cause virginity if the ingredients are not It is not recommended to make it, especially since it has side effects long-term.
Ways to Use Gesso and Its Best Types:
Types of gesso vary depending on the texture or surface used. For example, there is gesso specific to specific materials, like wood, and because of the difference in surface, gesso also varies in texture to accommodate all possible types of materials. It has a light texture and a dense texture. The best known type remains GOLDEN GESSO, which is the most used and is available in transparent and in two colors.
Gesso is used on the canvas using large, wide brushes, then the canvas is spread over the corset with as much effort as possible to further open the pores and deepen the gesso. We then try to apply a layer of gesso evenly over the entire surface. of the canvas, then let it dry overnight, away from anything that could damage the surface. Like dust and scorching sun, so that it will not get dirty or crack after drying. You can use sandpaper to level the surface, but while trying to create a slight friction, it will not damage the canvas as it is a tack and is easily affected by friction. You can apply the same process on different surfaces, but trying to control the amount of gesso used.
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