Zinc stearate coatings more extensive use

Zinc stearate is mainly used in paint wood primer , from filling role in enhancing sexual polished . Transparency, transparency affect paint small, especially for transparent primer. With the direct method zinc stearate manufacturers gradually increased, so that under the pressure of competition in the domestic zinc stearate coatings performance has been dramatically improved. In addition to zinc stearate coating focus sanding and transparent , but also some other factors such as overall  Stabilizers for pipe performance oil absorption, thickening , particle size, dispersion and so on Wood have also been affected. Zinc stearate in wood primer There are several major technical indicators affect the performance of its paint : 1 , primer sanding of the wood , polished performance is a very important indicator in the paint , the usual method is to use the same test the coating formulations , while polished plate spray test in the same time , there is no fixed standard . 2 , transparency transparent primer , the transparency level of direct impact on the appearance of wood . Therefore, the water produced with zinc stearate is not transparent in the wood , mainly because of too many impurities . The direct method in the production of zinc stearate is able to meet the requirements of purity , but also a very high process requirements , a significant impact of different production processes for transparency , small differences may lead to huge differences in process on transparency .
3 , thickening the production of coatings manufacturers of zinc stearate thickening is not acceptable because the zinc stearate coating added to finished products , its viscosity determines factory index had settled down , even if the error is also in ± 500mP · s, so the test zinc stearate thickening method is generally used to  one pack stabilizer test rotary viscometer , viscosity and viscosity deviation good if just a few hours after the dispersion is greater than 500mP · s, regarded as thickening 4. suction oil absorption and thickening personally do not think the same concept , oil is in the same proportion of large amounts of added conditions to make the finished product viscosity, while the viscosity does not exceed a period of time to place the error value ± 500mP · s. Generally PU coating for oil absorption is not much demand because production will not have much impact , paint manufacturers have high requirements on oil absorption , which may be solvent paint manufacturers to add some more , and want to reduce the evaporation of the solvent , must find some high oil absorption material added to it , and oil absorption of zinc stearate relative to other additives are additives of high oil absorption .
5, the particle size of the indicators show that the particle size of the zinc stearate , are generally used to measure the degree of fineness . The easiest test is usually the result fineness fastest scraper fineness, generally adding a certain percentage of zinc in the alkyd resin dispersion , then add a little solvent viscosity good tune , then fineness meter testing, such test results are slightly larger than the actual fineness so, because the resin powder is wrapped in possession of a certain thickness , but as long as the standard set can be comparable and reproducible test method to measure this fineness is exceeded 6 , dispersed in paint Chlorinated paraffin  production process , there are many manufacturers mentioned dispersion problems. Under normal circumstances , zinc stearate dispersed in the paint is not a problem , but in the production process of zinc stearate , some indicators will also cause the dispersion of certain effects, such as zinc stearate acid value is too high , semi temperature is too high, there will be zinc in the coating dispersion of workers bad press pack too serious , but if the water is too high in zinc also appear crystallization problems , is considered dispersion bad .