gessóval

Gessóval, also known as gesso, is a type of white, chalky plaster used in art and conservation. It is typically made from a mixture of gypsum, water, and sometimes other additives like chalk or lime. Gessóval is valued for its smooth, even surface and its ability to adhere well to various substrates, including canvas, wood, and plaster. It is commonly used in the preparation of surfaces for painting, as a primer, or as a finishing layer to seal and protect artwork.

In the context of art conservation, gessóval is used to repair and stabilize damaged surfaces. It can be applied in thin layers to reinforce weak areas or to fill in cracks and holes. The plaster can also be tinted to match the original color of the artwork, making repairs less noticeable.

Gessóval is available in various forms, including ready-mixed powders, liquids, and sprays. It can be applied using brushes, sponges, or rollers, depending on the desired finish and the specific application. The plaster dries quickly and can be sanded or polished to achieve a smooth, glossy surface.

While gessóval is a versatile and widely used material in art and conservation, it is important to note that it can be sensitive to changes in humidity and temperature. Proper storage and handling are essential to maintain the integrity of the plaster and the artwork it is used to preserve. Additionally, gessóval should not be used on surfaces that are highly acidic or contain significant amounts of salt, as these can cause the plaster to degrade over time.