Paint or acrylic for manhole cover painting

Pigments for drawing on manhole covers are divided into pigments and propylene, which have different steps.

By painting:

1, clean the surface of the manhole cover to be painted. If it is metal, please remove rust.

2. Draw the outline with pencil or chalk.

3. Use a brush to evenly apply the color blocks in the order from deep to shallow. Pay attention to wait for the dark paint to dry before applying the light color, otherwise the colors will be easily mixed.

4. Spray high-gloss with filling spray paint, because the high-gloss sprayed by filling spray paint is soft and uniform, and it can also transition in excessively uneven places.

5. Use varnish spray to lift the lamp.

Note: paint is very volatile. Please wear a mask when creating.

By propylene method:

1, sketched with pencil or directly sketched with propylene.

2, the layout of the background color and heavy color, propylene is easier to master than pigments, and it is similar to drawing on drawing paper.

3. Wait for the ground color and heavy color to dry before applying light color.

English name of paint: paintorcoating. Paint is a kind of chemical mixture coating, which can firmly cover the surface of objects and play a special role in protection, decoration, marking and so on.

The authoritative work "Coating Technology" in China coating industry is defined as follows: "Coating is a material that can be coated on the surface of an object through different construction processes to form a solid film with firm adhesion, certain strength and continuity. The film formed in this way is commonly called coating film, also called paint film or coating. "

Coatings are generally composed of film-forming substances, fillers (pigments and fillers), solvents and additives. According to the performance requirements, sometimes the composition will change slightly, for example, there is no pigment and filler in varnish and no solvent in powder coating.

It belongs to organic chemical polymer material, and the formed coating film belongs to polymer compound type. According to the classification of modern chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a multifunctional engineering material and an important industry in the chemical industry.

2065438+0717127 October, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference. Paint manufacturing (occupational exposure) is among the three carcinogens.

Propylene is an organic compound with the molecular formula of C3H6, which is colorless, tasteless and slightly sweet. Flammable, it will produce bright flame when burning, and the explosion limit in air is 2% ~11%; Insoluble in water, soluble in organic solvents, it is a low toxic substance.

Propylene is one of the basic raw materials of the three major synthetic materials, and the largest amount is used to produce polypropylene. In addition, propylene can be used to prepare acrylonitrile, propylene oxide, isopropanol, phenol, acetone, butanol, octanol, acrylic acid and its esters, propylene glycol, epichlorohydrin and synthetic glycerol.