In the process of coating production, there are also many manufacturers mention the problem of dispersion. Under normal circumstances, the dispersion of zinc stearate in the paint is no problem, but in the production process of zinc stearate, there will be some indicators on the dispersion will also cause a certain impact, such as zinc stearate acid value is too high, the temperature of semi-finished products is too high, workers are too serious when the zinc powder in the coating dispersion is not good.
At the same time, if the moisture in zinc powder is too high, there will be crystallization problem, which is considered to be poor dispersion. In transparent primer, the quality of transparency directly affects the beauty of wood. Therefore, zinc stearate produced by water method can not be used in clear wood lacquer, mainly because of too many impurities. The direct production of zinc stearate in purity can meet the requirements, but the requirements of the process is also very high, different production processes have a great impact on the transparency, it is possible that small differences in the process lead to a great difference in transparency.
Therefore, although there are many direct production of zinc stearate manufacturers, but can be used in the coating industry is not common. This is also do paint zinc stearate enterprise core technology. The usual detection method of transparency is to use a certain proportion of resin, solvent, zinc stearate dispersion, test sample and standard sample each, and then use the coater in black and white paper or glass coated with a layer of film, see the degree of transparency.