Polymethyl urea resin chemical composition similar to the shape of true spherical Density g / cm1.47 body bulk density kg / m packing density of about 80 kg / m The specific surface area of ??about 200 m / g (BET) 14-22 oil absorption of cm / 100g thermal decomposition temperature of about 310 ° C> 220 refractive index 1.607PH value of 8-9.5% solids> 83 years of storage time> 32, ideal transparency 1) Choose products with a lower average particle size. Under the same circumstances the amount of the formulation, the quality matting agent, the average particle size of less matting agent, matting agent of the company, the better the transparency of the film, matting agents, but the corresponding extinction efficiency will be reduced, to be noted the fines content is too high, matting agents products, will have a negative impact on transparency. 2) Surface treatment. Because of the type of matting surface treatment is different, with the base material will affect wetting and dispersing properties, which will affect the film's transparency. Hence the need to adjust the matching matting between the base material, if necessary, to improve the wetting and dispersing additive by adding. At the same time the need to pay attention to whether there are other factors that lead to deterioration of the transparency of the film, such as the poor compatibility of additives such as a pigment or a difference. Matting agents Companies | Weifang Fuyuan (certified) | matting agent provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Technology Limited (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan better future.