Cleaning pre -diaphragm is a chemical agent for cleaning and preparation. It is usually used before coating or paint. Its role and mechanism are as follows:
Remove dirt and oil: Cleaning pre -membrane agents can effectively remove the surface of the surface dirt, oil, dust and other impurities, make the surface clean, dust -free, and provide good attachment conditions.
Enhanced adhesion: Cleaning pre -film can improve the adhesion of coating or paint. It removes the surface of the substrate on the surface of the surface by removing the surface of oxides, iron rust, oil, etc., and increases the physical or chemical binding force between the coating and the substrate.
Provides surfactant effects: Cleaning pre -membrane agents usually contain surfactants, which can improve the moisture and liquidity of the coating, which is evenly distributed on the surface to reduce the defects and wrinkles of the coating.
Neutralized surface acid and alkali: Some cleaning pre -membranes have neutralized acid and alkali performance, can neutralize the acidic or alkaline substances on the surface, and balance the pH value of the surface to provide better coating conditions.
Rust -proof and anti -corrosion: Cleaning pre -membranes may contain rust -proof and anti -corrosion agents. While cleaning, a protective thin film can be formed on the surface to prevent the substrate from being oxidized or corrosive during the coating process.
It should be noted that different cleaning pre -membranes have different components and mechanisms, and specific functions and mechanisms may be different. Therefore, when using cleaning pre -membrane agents, correct use and operation should be used according to the description and suggestions of specific products.