There are differences between the water-based paint spraying line and the traditional paint spraying line in multiple aspects. The following is a detailed introduction for you:
Water-based paint: It uses water as a diluent. Its main components include water-based resins, pigments, and additives. It contains little or no organic solvents.
Traditional paint: Usually, it uses organic solvents (such as toluene and xylene) as diluents. The film-forming substance is generally resin, and it also contains pigments and additives.
Water-based paint: It is free of harmful heavy metals and emits few organic solvents. During the spraying process, it produces little odor, posing less harm to the health of operators. Meanwhile, it reduces the risks of fire and explosion.
Traditional paint: Organic solvents are flammable and explosive. A large amount of harmful gases are emitted during use. Long-term exposure may lead to poisoning, occupational diseases, and other health problems, presenting significant safety hazards.
Water-based paint: The drying speed of water-based paint is greatly affected by environmental humidity. In a high - humidity environment, the drying speed will slow down significantly. However, appropriate heating and ventilation measures can accelerate the drying process.
Traditional paint: The drying speed of traditional paint is relatively fast. Especially for some quick - drying paints, they can form a film rapidly at room temperature. But some paints release a large amount of organic solvent vapors during the drying process.
Water-based paint: Since water-based paint has relatively low viscosity, it has higher requirements for spray guns. The spray guns need to have good atomization effects and precise flow control to ensure uniform spraying.
Traditional paint: Traditional paint has higher viscosity. Generally, spray guns with larger nozzles are used to adapt to the fluidity of the paint. Meanwhile, the wear resistance requirements of paint spray guns are relatively higher.
Water-based paint: The water-based paint supply system needs to have good anti - rust and anti - corrosion properties because water is corrosive to metals. Usually, pipes and containers made of stainless steel or plastic are used.
Traditional paint: The anti - rust requirements for the traditional paint supply system are relatively lower, but the compatibility of organic solvents with sealing materials needs to be considered to prevent solvent leakage.
Water-based paint: When drying water-based paint, the temperature needs to be increased gradually to avoid defects such as bubbles and pinholes in the coating caused by rapid evaporation of water. Generally, low - temperature drying or hot - air circulation drying methods are used.
Traditional paint: Higher temperatures can be used for drying traditional paint, and the drying speed is faster. Common drying methods include infrared drying and high - temperature hot - air drying.
Water-based paint: The exhaust gas generated during the water-based paint spraying process mainly consists of water vapor and a small amount of volatile organic compounds. The exhaust gas treatment is relatively simple. Generally, environmental protection requirements can be met through methods such as water curtain cabinets and activated carbon adsorption.
Traditional paint: The exhaust gas generated by traditional paint spraying contains a large amount of organic solvent vapors. More complex exhaust gas treatment processes, such as catalytic combustion and activated carbon adsorption - desorption, are required to ensure that the exhaust gas meets the emission standards.
Water-based paint: Water-based paint has relatively strict requirements for the temperature and humidity of the construction environment. Generally, the temperature is required to be between 5°C and 35°C, and the relative humidity is between 40% and 70%.
Traditional paint: Traditional paint has relatively stronger adaptability to the construction environment. However, in high - temperature, high - humidity, or low - temperature environments, the drying speed and coating quality of the paint may also be affected.
Water-based paint: It is convenient to clean the water-based paint spraying equipment. Water can be used to clean spray guns, pipes, and other equipment, reducing the use of cleaning solvents and the generation of waste.
Traditional paint: Special solvents are required to clean the traditional paint spraying equipment. The cleaning process is more complicated, and the use and disposal of solvents will increase costs and environmental pressure.
Water-based paint: The raw material cost of water-based paint is relatively high. However, due to its good environmental performance, the cost in aspects such as exhaust gas treatment is lower.
Traditional paint: The raw material cost of traditional paint is relatively low, but the costs in exhaust gas treatment, safety protection, etc., are higher. The overall cost may not be low.
Water-based paint: It is widely used in fields with high environmental protection requirements, such as interior decoration, furniture manufacturing, and automotive interiors.
Traditional paint: It still dominates in fields with high requirements for coating performance, such as industrial anti - corrosion, shipbuilding, and bridge construction.
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