Cultural wall wall painting material

Propylene pigment is a synthetic polymer pigment, which was invented in 1950s and made of pigment powder and acrylic latex. Acrylic latex is also called acrylic polymer latex. There are many kinds of propylene resins, such as methacrylic resin, so there are many kinds of propylene pigments. Foreign pigment manufacturers have produced a series of propylene products, such as matt propylene pigment, semi-matt propylene pigment and glossy propylene pigment, as well as propylene matt oil, varnish and plastic ointment.

Acrylic pigments are very popular with painters. Compared with oil painting pigments, it has the following characteristics:

(1) can be diluted with water to facilitate cleaning.

② Quick drying. Pigment can be dried within a few minutes after putting pen to paper, and there is no need to wait for months to polish it like oil painting. Painters who like slow-drying pigments can use retarders to delay the drying time of pigments.

(3) When the colored layer is dried, it will quickly lose its solubility and form a tough, elastic and impermeable film. This film is similar to rubber.

(4) The color is full, dense and fresh, and it will not feel "dirty" or "gray" no matter how it is blended. The colored layer will never absorb oil and get dirty.

(5) The work has long durability. The oil film in oil painting is easy to oxidize, yellow and harden for a long time, and it is easy to crack the picture. Theoretically, acrylic films will never become brittle or yellow.

(6) The biggest difference between acrylic pigment and oil painting is that it has the operational characteristics of general water-based pigment, which can be used as both watercolor and gouache.

(7) There are particles, coarse particles and fine particles in the acrylic plastic paste, which provides convenience for making textures.

(8) Propylene pigment is nontoxic and will not cause harm to human body.

It should be noted that acrylic painting should be painted on a substrate made of acrylic primer (gypsum powder), not on an oily substrate. Material experts also don't advocate the mixed use of propylene and oil painting pigments, especially don't paint oil paintings on propylene substrate, which is mainly for the permanent preservation of works. Propylene has no adverse reaction with oil painting pigments, and its adhesion needs time to be tested when it is used alternately.