What base material should be used for Sichuan steel structure? What is the composition and function of paint?

Category： Industry News

Time：2020-07-08

For babies who rarely contact Sichuan steel structures, Xiaobian will popularize the composition and function of steel structure construction coatings to you today.

A. Base

The primary film-forming substance, also known as binders. It binds the other components in the coating into a whole, is the foundation of the coating formulation, an essential basic ingredient, and has a decisive effect on the properties of the coating.

B. Pigment filler

Non-essential film-forming substances constitute an important part of the coating film, which cannot form the film alone, but have a huge impact on the function of the coating film.

C. Solvents or water

Auxiliary film-forming substances, which are not left in the coating film in the end.

D. Auxiliaries

Auxiliary information, the dosage is small but the effect is obvious, which can greatly improve the nature of the coating film.

First, the characteristics and functions that the base material should have

a. It has good weather resistance

Weather resistance refers to the ability to resist harsh climates such as freeze-thaw cycles, strong storms and scorching sun. Keep the functional indicators unchanged or slightly reduced during a certain period of time in the rule, but still meet the application requirements.

b. It should be able to form a film at room temperature

Not all binders can form films at room temperature, and some binders with relatively high glass transition temperatures are not suitable for use as construction coatings. Generally speaking, construction coatings require film formation between 5~26 °C.

c. Good alkali resistance

Coatings are generally applied to cement concrete, lime-containing plastering materials and other alkaline walls, these bases are relatively alkaline, if the coating resistance to alkali can be weak, will show saponification, alkali blooming and other phenomena, the result will lead to coating peeling off or discoloration and fading.

d. Brush resistance

Paint as a construction coat, in the exterior wall to be washed by rain, and the interior wall to be washed by the user, if the paint is not resistant to washing, then soon exposed.

Have you understood the above little knowledge about the composition and function of Sichuan steel structure?

Keywords： What base material should be used for Sichuan steel structure? What is the composition and function of paint?

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