Update:1. What is paint?
Coating refers to a liquid or powdery material, which can be coated on the surface of an object throug...
1. What is paint?
Coating refers to a liquid or powdery material, which can be coated on the surface of an object through a specific construction process, and after drying and curing, it forms a firm adhesion, a continuous solid coating film with a certain strength, and has a strong effect on the object to be coated. protection, decoration or other special features. There are many types of
coatings and a wide range of uses. It plays an important role in the national economy and people's life. The average amount of paint used per person per year is one of the important indicators of a country's living standard.
2. What is the general function of the coating?
Decorative: The color, texture, finish, and gloss levels of the paint provide decorative effects.
Protection: Different coatings provide protection for different types of substrates. Depending on the coating formulation, coatings can provide protection against high humidity, chemicals, oils, corrosion, algal growth and abrasion.
Special Purpose: Coatings can also be formulated for special purposes. For example, fluorescent paint for signs, other flame retardant paint, anti-condensation paint and electrophoretic paint, etc.
3. What is the difference between paint and paint?
In my country, it is generally believed that paint is water-based paint, which is used to brush the surface of buildings, and paint is used to brush wood and metal. In fact, this is a misunderstanding. Paint contains paint, which can be divided into water-based paint and oil-based paint. With the development of the petrochemical industry and the endless emergence of chemical products, modern coatings have broken away from the tradition of using oil to produce paint. More and more coating products are prepared by chemical synthesis, and the types and application occasions of coatings are becoming more and more extensive. So the difference between them is that paint is a type of paint. Paint has a broader meaning.
4. What are the general properties of coatings?
The properties of coatings can be divided into:
Open-can appearance and low-temperature freeze-thaw properties of coatings.
Construction methods and properties of coatings: brushing, roller coating, spraying, and construction feel and leveling properties.
Appearance of coating film: such as gloss, fullness, color and fineness.
Drying time: surface drying time, actual drying time, recoating time, maintenance period.
Adhesion: Adhesion to substrates or to old paint films.
Covering power: whether to cover the bottom after the normal number of brushing times.
Mechanical properties: hardness, impact, flexibility.
Resistance: anti-ultraviolet, anti-chemical, anti-wear, anti-water and alkali, anti-mold and algae, etc.
Persistence: Whether it has long-term gloss and color retention.
Storage stability: precipitation tendency, viscosity stability, etc.
5. What is the hardness of the coating?
Hardness refers to the resistance of a paint film to foreign objects invading its surface. The hardness of the paint film is one of the important properties of its mechanical strength. Generally speaking, the hardness of the paint film is related to the composition and drying degree of the paint. For example, the more thoroughly the paint film is dried, the higher the hardness is.
6. What is the drying time of the paint?
The physical or chemical change process of the coating from a fluid layer to a solid coating film is called film drying; the drying time is called drying time. The drying process of the coating film can be divided into three stages: surface drying, actual drying and complete drying.
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