Gouache pigments are mostly transparent and consist of powdery materials. Propylene pigment is made of chemically synthesized rubber emulsion (including acrylate, cement, fillers, preservatives and other adhesives). Watercolor is partial to water, which is suitable for rendering after dilution. Personally, I prefer the unique effect of watercolor on the edge of watercolor paper. Propylene is suitable for thick coating, and its color is brighter than gouache. After drying, you can see that the surface has formed a smoother texture, which feels like a layer of nail polish. Haha, and acrylic is suitable for painting on different materials.
Oil painting pigment is a kind of special painting pigment for oil painting, which is made by adding oil to pigment powder and stirring and grinding with glue. The performance of oil painting pigments can be properly adjusted by using different media and auxiliary materials according to different needs. Most of the products sold in the market are packed in tubes, and you can also make them yourself. The basic components of oil painting pigments, like other painting pigments, are composed of pigments, solid pigments, color carriers and some auxiliary materials such as molding agents, stabilizers, slow-drying agents or driers. Most of the pigment powder used by ancient masters came from soil and minerals.
Knowledge expansion
Acrylic painting is basically the same as gouache, and you can also make a heavy texture with a palette knife. In foreign countries, it is mainly used as a painting tool for art classes in primary and secondary schools, and also used for some wall posters. Some people in China use it as a mural (but it is not durable and not suitable for formal artistic creation). Can be used for paper and other surfaces (wood, walls, textiles, etc.). ).
Oil painting pigment is a kind of pigment with oil as diluent, which is difficult to dry. Generally, it takes a month for the surface to dry thoroughly before it can be basically dried thoroughly. To maintain the thickness and luster of the dried pigment layer, it is necessary to make a special oil painting base, which is usually painted on canvas.
Gouache pigment has the same high color saturation as oil painting pigment when it is wet, but it will become shallow and gray when it is dry, and will dissolve when it meets water again. At present, this pigment is only widely used in China, mainly for middle school students' exam assignments and color training before entering universities. Suitable for thick painting, with limited techniques and limited color gamut. Can only be used on paper.