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1) Quality of coating film: In the case of high decorative requirements, the fullness of water-based coatings usually does not meet the requirements of people. High-gloss coatings are often achieved by using solvent-based coatings.
2) Adaptability to various construction environments: For water-based paints, the volatilization rate cannot be adjusted. In order to obtain a high-performance water-based latex paint film, it is necessary to control the temperature and humidity of the construction environment. In some harsh conditions, such as the construction of external walls and bridges, it is impossible to artificially create a temperature and humidity controllable condition, so the application of waterborne coatings may be limited; instead, solvent-based coatings can be used, The climate change is controlled by the solvent ratio to obtain a high quality coating film.
3) Solvent-based coatings have a wide selection of resins: in solvent-based coatings, almost all kinds of resins can be dissolved in solvents, and the choice is wider. Different resins have their own unique properties, such as polyurethane with excellent weather resistance and chemical resistance, high gloss, abrasion resistance, etc. Silicone resin has excellent heat resistance and can be used as a base for heat-resistant and weather-resistant coatings.
4) Cleaning problems. The construction tools for solvent-based coatings must be cleaned with solvents and are harmful to humans and the environment. The construction tools for water-based paints can be cleaned by water, and are harmless to the human body.
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