In the process of product painting, the construction technical index of anti-static floor paint generally attaches great importance to the detection of various quality indexes of floor paint coatings, but usually neglects the detection of the quality of floor paint coatings. Before painting, the quality of epoxy floor paint should be strictly controlled to ensure the high quality of products. Batch coatings purchased and used in the factory, the process department can only sample and test the qualified acceptance, sampling test, although the batch of coatings representative of the quality performance, but can not guarantee that 100% of the whole batch of coatings fully meet the paint standards, as well as factory quality standards indicators of various performance requirements: （1）环氧地坪漆涂料粘度的检测涂料粘度分为相对粘度，运动粘度和绝对粘度。涂装过程中，生产现场常用涂-4粘度计测得的涂料粘度，即为相对粘度。粘度检测除常用的涂-4粘度计外，还有检测高粘度的涂-1粘度计、落球粘度计和应用较少的旋转粘度计等。
(1) Testing the viscosity of epoxy floor coatings The viscosity of the coatings is divided into relative viscosity, kinematic viscosity and absolute viscosity. In the process of coating, the viscosity of coating measured by -4 viscometer is the relative viscosity. Viscosity testing in addition to the commonly used coating-4 viscometer, there are high viscosity testing coating-1 viscometer, drop ball viscometer and less application of rotary viscometer.
(2) Testing the fineness of floor coatings; the size of pigments and filler particles in the components of color coatings, and the degree of uniform dispersion in production, have a greater impact on the smooth appearance and gloss of the coatings. For this reason, the quality index of coating fineness must be tested to conform to the specifications specified in the paint quality standard. The scraper fineness gauge can be used to detect the fineness index of the coating.
(3) There are international standards for the quality of commonly used coatings and for the quality of coatings (referring to solvent coatings) as well as national standards, standards issued by the Ministry of Chemical Industry and quality standards for each factory. In the quality standard of floor paint, there are such items as fineness, viscosity, leveling, covering power, density, flash point and consistency of the coating. There is also a quality item that can be measured daily before use.
Epoxy floor paint and floor renovation although their selection of materials and construction is basically the same, but they are not the same way, the floor renovation will be the first to remove the old floor, and do the underlying treatment.
To eradicate the old coatings, the first thing to do is to make clear the aging state of the floor and the compatibility of the new floor paint. If the aging level of the floor is severe, you can use water immersion, scouring and then finishing with a putty knife. Ordinary use of mechanical methods to clean solvent-based floor, such as wire brushes or electric grinding wheels, because the surface of solvent-based floor paint is more compact, so the use of mechanical method is more appropriate.
If the company needs to update the floor for the reason, the first thing to consider is the compatibility of Ping lacquer. If the compatibility of the floor is good, just need to clean the surface and then coat the floor can be, if the compatibility is very poor, then the need to clean up the old floor after reinstallation.
Epoxy anti-static floor paint has decorative and applicability, however, after the completion of the construction often appear film bubble, brush marks, empty drum, peeling and other phenomena, these problems are mainly due to the formation of inappropriate construction, may be the choice of inferior data formation, perhaps in the process of application is not protected.
The internal stress of epoxy floor coatings is low in the course of cross-linking and curing. During the process of film formation, many factors in the technical application of functional floor coatings will lead to the internal stress of the coatings and cause the final defects of the coatings, especially the reduction of adhesion of the coatings to the substrate. When the epoxy resin molecule contains the secondary light group, it also derives some meridian groups. The hydrogen bond association between the light groups makes the epoxy resin molecule arrange tightly. Therefore, the density difference of the epoxy resin before and after curing is small. Moreover, the curing reaction of the epoxy resin is mainly the addition polymerization of the gradual ring opening, and there is no such reaction. As a by-product of small molecules, the curing shrinkage of epoxy resin is very low, so the adhesion between the film and the interface is little affected by the curing of epoxy resin coatings.
标签:   环氧地坪 地坪 环氧地坪漆 环氧地坪施工