chemical, matting agent, coating additive

chemical, matting agent, coating additive Characteristics of SA series high-grade delusterant powder Certification: ISO ISO9001 ,ROHS Easily dispersed: Our company’s A SERIES high-grade delusterant powder is easily dispersed. In the prescription of 80% colophony, 15% solvent and 5% delusterant powder, without any dispersant, the product has very fine dispersion, as shown in the following table: Table 2 Experimental data of dispersion of SA SERIES high-grade delusterant powder TypeItem SA-220SA-230SA-250SA-260SA-220LSA-230LSA-250LSA-260LDispersion time, mins 1515151515151515Dispersion speed,r/min 15001500150015001500150015001500Dispersion thinness, um 1820252818202528 Good transparency: The purity of SiO2 in SA SERIES high-grade delusterant powder reaches 99.3%, and special method is adopted for surface treatment so that its refraction index reaches 1.47, being close to that of colophony, i.e. 1.40 1.60, which greatly improves its transparency in coating film and whose transparency is very close to the level of foreign products so as to avoid low-grade delusterant powder’s problem of turning white and blue on the surface. High efficiency: As SA series high-grade delusterant powder improves its porosity to 1.8 and decreases the distribution of micropores and ultra-large pores, the distribution of pores is more symmetrical and greatly improves the efficiency of delusterant; the diameter is narrower so as to reduce the negative influence of small granules on the effect. Good performance of deposition resistance: SA series products with surface of wax treatment formed in the method of synthesis has very good performance of deposition resistance and will not generate rigid deposition in the term of storage and thus affect the effect of coatings. The products without surface of wax treatment must be added with some deposition-resistant agent to avoid rigid deposition of delusterant powder in the process of storing coatings. Good hand feeling: As SA SERIES high-grade delusterant powder has very narrow distribution of the diameter of granules, the product reduces the influence of ultra-fine silicon dioxide on mucosity of coatings and that of big granules on the touch of surface, so that the surface is smooth, exquisite and silk-like. Low oil factor: Modern coatings develop towards high proportion of solid and low proportion of solvent so as to heighten the chubbiness of coating film and reduce pollution. Due to the special micro structure of SA series products, the oil factor is 12% lower than foreign products of the same category and SA series delusterant powder is more applicable for the production of coatings like UV with high proportion of solid. Applicable scope of SA series high-grade delusterant powder Application to PU coating: recommend SA230,SA250,SA250L,SA260,SA260L Application to NC system: recommend SA220,SA230,SA250,SA250L Application to UV system: recommend SA250,SA250L,SA260,SA260L,especially SA260,SA260L have stronger effect in UV system Application to WB waterborne system: recommend SA220,SA230,SA250,SA250L Application to leather system: recommend SA220,SA230,SA220L,SA230L