Why do so many people paint polyurethane with cashew nuts instead of natural paint?

1. The translucency of natural paint itself determines the difficulty of color processing. Although for craftsmen who are very proficient in the characteristics of natural paint, the color effect of natural paint is definitely due to the paint synthesized by any other cashew nut paint chemical paint. After all, it is too difficult, even for paint master Cai Kezhen. As Mr. Qiao said, lacquer paintings made of natural lacquer are "dancing in chains", especially white ones, which need to be treated with many egg shells. The effect that can be easily achieved with cashew nut paint and chemical paint is difficult to achieve with natural paint. Generally, buyers only care about whether it looks good or not, what materials are used and whether it is poisonous. This can be said to be the main reason why most painters give up using natural paint. 2. Natural paint is easy to wrinkle, and the paint surface is difficult to smooth. It is very difficult to directly polish natural paint. Because of this, except Yangjiang lacquerware, most lacquerware varieties are painted and polished. Even polished ones are difficult for beginners to master easily. The characteristics of natural paint easily change with the change of humidity, temperature and place of origin. The most suitable time for drying the surface of natural paint is three to four hours. If it is dried for three hours, it is easy to wrinkle, and if it is dried for more than four hours, it is easy to sag, especially when hanging vegetables, which is easy to stick to dust and cause quality problems. Cashew nut paint and chemical paint have much better leveling properties than natural paint and are not easy to wrinkle. The price of natural paint is more expensive than others. Not cost-effective. This can be said to be one of the main reasons why the lacquerware handicraft market is full of fake lacquerware! 4. The learning cost of natural lacquer is high, and it takes a lot of time to master natural lacquer painting freely, while people who basically don't understand cashew lacquer can be oil paintings as soon as they get started. 5. The operating time cost of natural paint is high. Even artisans who are very proficient in natural paint need to spend a lot of time making cooked paints for various purposes, and on the other hand, natural paint needs to be dried for a long time after decoration. On the contrary, cashew nut paint and chemical paint are easy to dry and quick-dry, and you can do whatever you want. Even if the drying is faster, the more desiccant is needed and the greater the toxicity, they will dry quickly without hesitation to save time and cost. 6. Many people would rather endure toxic gases such as formaldehyde, benzene and toluene, which are harmful to life, than paint allergy caused by paint poison of natural paint. What's even more ridiculous is that some educational institutions tell students that natural lacquer is toxic, while cashew lacquer is not.