Some basics about paint

1. What kind of diluent?

The film former cannot be dissolved in the paint alone, but the volatile liquid used to dilute the ready-made film former solution will become thinner. It is often used in paint construction to adjust paint viscosity and clean construction tools and equipment. The diluent used should be determined according to the properties of the main film-forming substances contained in the paint.

2. What is curing agent?

Curing agent, also known as hardener, is a material that can cross-link with the film-forming material to make it dry to form a film. Different film-forming resins should use different curing agents, and the amount of curing agent is too small. The paint film cures slowly, and a soft paint film is prone to appear; too much curing agent will cause the paint film to cure too quickly, and the paint film is prone to defects of brittleness and aging resistance.

3. What is paint?

Commonly known as "paint", it is a material that can be covered on the surface of an object with different construction techniques.

Functions of coatings: protection, decoration, utility

4. Coating composition

It is generally composed of four parts: film-forming substances, pigments, additives and solvents.

1. Film-forming substances.

Also known as the substrate, the basic feature is that it can form a film after construction, and it mainly plays the role of bonding other components in the coating to form a film.

2. Pigment

• Enables films to exhibit various colors and covering functions

• Improve the mechanical properties and durability of the coating film

• It has specific functions such as insect-proof, conductive, fire-proof, temperature indication, etc.

3. Auxiliary machine

It is an auxiliary material of paint and cannot form a film alone, but it plays an important role in the production, storage and construction of paint. Such as defoaming agent, leveling agent, desiccant, dustproof agent, etc.

4. Solvent

Its function is to dissolve the film-forming material into liquid, which is convenient for construction. After construction, it volatilizes from the paint film into the atmosphere, making the liquid film into a solid, so it is also called volatility. Common solvents include aliphatic hydrocarbons (such as pine and water), aromatic hydrocarbons (such as toluene and xylene), alcohols, ethers, ketones, etc. According to its solubility in film-forming substances, it can be divided into true solvent and co-solvent