What is the paper used for gouache watercolor painting? Can you use sketch paper?

Gouache and watercolor paintings are made of special gouache paper and watercolor paper.

Generally speaking, sketch paper is not suitable for gouache and watercolor painting.

Gouache paper is a kind of paper specially used for gouache painting. This kind of paper can absorb water and is very thick. There is a spot-like pit on the surface of gouache paper, and the concave surface of the spot is positive. Gouache paper has different color backgrounds.

Watercolor paper is a kind of paper specially used for watercolor painting. Generally, this kind of paper has better water absorption, thicker pounds and more paper fibers.

These two kinds of paper are sold in most stationery stores and painting and calligraphy shops.

Extended data

When gouache is wet, its color saturation is as high as that of oil painting, but when it is dry, it loses its luster and its saturation is greatly reduced because of the powder, which is the limit of its color purity.

Watercolor paper is characterized by higher water absorption than ordinary paper, thicker pounds and stronger paper fibers, which are not easy to break and pilling due to repeated application. There are many kinds of watercolor paper, the cheap ones have poor water absorption, and the expensive ones can keep the color for a long time.

According to the fiber, watercolor paper has two basic fibers: cotton and hemp. According to the surface, there are rough surface, fine surface and sliding surface. According to manufacturing, it is divided into handmade paper (the most expensive) and machine-made paper.

References:

Baidu encyclopedia-watercolor paper

Baidu Encyclopedia-gouache paper