What is Gesso?
Gesso is a traditional art supply that has been used for centuries by artists to prepare surfaces for painting. It is a white paint-like substance that is applied to canvases, wood panels, or other surfaces to create a smooth, absorbent base for painting. Gesso helps to seal the surface, preventing the paint from soaking into the material and allowing the artist to work with more control and precision.
Types of Gesso
There are two main types of gesso: traditional gesso and acrylic gesso. Traditional gesso is made from a mixture of chalk, gypsum, and animal glue. It is a time-consuming process to make and requires several layers to create a smooth surface. Acrylic gesso, on the other hand, is a modern alternative that is easier to use and dries quickly. It is made from acrylic polymer and can be applied in fewer coats than traditional gesso.
How to Apply Gesso
To apply gesso, start by preparing your surface. If you are working on a canvas, make sure it is stretched tightly and free of any dust or debris. Use a wide, flat brush to apply the gesso in thin, even layers. Allow each layer to dry completely before applying the next one. Sand the surface between coats to create a smooth finish. You can also tint the gesso with acrylic paint to create a colored base for your painting.
Uses of Gesso in Art
Gesso has many uses in art. It can be used to prime canvases, wood panels, or paper before painting. It can also be used to create texture or build up layers in mixed media artwork. Gesso can be sanded or scraped to create interesting effects or to reveal underlying layers of paint. It can also be used as a base for drawing with pencil or charcoal.
Tips for Working with Gesso
– Use a high-quality gesso for best results. Cheaper gessos may not provide a smooth surface or may crack over time.
– Experiment with different textures and techniques when applying gesso. You can use a palette knife, sponge, or even your fingers to create interesting effects.
– Allow each layer of gesso to dry completely before applying the next one. This will help prevent cracking or peeling.
– Sand the surface between coats to create a smooth finish. You can also use a fine grit sandpaper to create texture or remove excess gesso.
– Store gesso in a cool, dry place to prevent it from drying out or becoming lumpy. If your gesso does become too thick, you can add a small amount of water to thin it out.
Gesso Alternatives
If you are looking for alternatives to traditional gesso, there are several options available. Acrylic medium can be used as a base for painting and is similar to acrylic gesso in its properties. Clear gesso is a transparent version that can be used to seal surfaces without adding a white base. Pumice gel can be mixed with acrylic paint to create a textured surface. Experiment with different materials to find the best option for your artwork.