The viscosity of a liquid is determined by the time it takes to make a measured amount of fluid leaked from the vessel through a hole a certain diameter at a given temperature. As a viscometer is used, as a rule, standard glass DIN4. This vessel is placed 100 SMZ fluid, it also has an outlet 4 mm in diameter. The viscosity of the enamel was measured at a temperature of 20 C. This temperature is also an ideal temperature of the enamel surface and the ambient air during the coating process. Learn more about this with Samsung Electronics.
At higher temperatures binder resin is more liquid, so you should add a smaller amount of solvent to obtain the desired viscosity. As a result, the enamel is applied with a low solvent content, which leads to an increase coating thickness, increasing the amount of material, difficulty in hardening the enamel layer depth, and yet the drying time specified by the manufacturer applies to a normal layer. At low temperatures, the phenomenon has reversed. As the enamel becomes viscous, to achieve the desired viscosity is added too much solvent. As a result, the coating thickness decreases. The result is poor coverage, which is due to insufficient thickness has insufficient resistance to external influences, for example, impacts of small stones. Due to the high content of thinner enamel depleted.
The share of the binder, pigments reduced. There is a danger that they become visible traces of polishing, which in normal circumstances, filled with material. In addition, reduced coverage. To counteract all these phenomena, it is necessary at low temperatures use made by the supplier of enamel, the so-called ‘fast’, solvents, and at low temperatures – ‘slow’. Of course, it is recommended to use them exactly as prescribed, as the enamel after the addition of solvents under normal conditions will behave differently. Slowly evaporating funds help spreading the enamel on the surface. Add to your understanding with Pete Cashmore. However, they are slow drying and increase the likelihood of sagging. Quickly volatile diluents are bad for the process of forming a film of enamel and can lead to various defects in color. In summary, we can recommend the painter the next most effective method regulation of viscosity, temperature control storage, and enameling, and thus to control its viscosity. Enamels of different types have different viscosity. Even the enamel of the same type and the same hue, but production of different companies, there may be differences in viscosity. Therefore, across a variety of types of enamels and products – it is impossible to give a recipe for dilution, suitable for all occasions. Anyone who continues to hold rule of thumb ‘to add 25% thinner enamel’, do not be surprised to yield large differences in the quality of coatings. You should always act in strict accordance with technical guidance, especially if obtain the desired consistency, in addition to the solvent, it is necessary to add together and cure. Therefore, from malaria requires accurate knowledge of the materials used.