In the process of epoxy floor paint reaching its service life, the film will also gradually aging, from light to heavy, mainly for the loss of light, discoloration and powdering of the film, so that the epoxy floor paint completely lost its function, no longer has the function of protecting the ground. The following Guanglei floor paint manufacturers will give you a detailed description of the three characteristics of aging epoxy floor paint film. We can judge whether the epoxy floor paint film is aging. For the epoxy floor paint with ageing film, it should be renovated in time (refer specifically to the "Renovation and Reconstruction Scheme of Old Epoxy Floor"), otherwise it will affect the normal use of the floor. 一、失光
First, loss of light.
Loss of gloss is the initial feature of the ageing of epoxy floor paint. Because of the influence of ultraviolet radiation in sunlight, the epoxy floor paint film causes photochemical reaction, which degrades the epoxy resin composition and gradually loses its original gloss until it develops into total loss of gloss. The gloss of epoxy floor paint coating is an important index of decorative epoxy floor paint coating. Once the film loses its gloss (except for the original gloss coating), it has no decorative property. Therefore, through the application of epoxy floor paint coating, the epoxy floor paint coating can achieve brilliance, good fullness and excellent reflectivity. It is not only related to the correct choice of epoxy floor paint, but also a measure. Epoxy floor paint construction technology level is one of the important indicators.
This is also an obvious sign that the epoxy floor paint film is beginning to aging. Epoxy floor paint film changes color from normal color, some darkening, some lightening, some darkening, some white yellowing, some red pink or light, etc., which belong to discoloration. The reason is that the photochemical reaction results in the discoloration of the paint, which has a certain relationship with the properties of the resin, but mainly depends on the properties of the selected pigments. Different pigments have different photosensitivity, which shows different color retention.
Powdered epoxy floor coatings are characterized by gradual deepening of aging. The main reason is that the interaction between solar ultraviolet radiation and oxygen causes the crosslinking or degradation of resin molecular chains, which promotes the separation of resin and pigment particles, and the phenomenon of dedusting. Secondly, it has a great relationship with the nature and crystal shape of the pigments.
Powdered phenomena occur only after the epoxy floor paint film is seriously or completely lost light. That is to say, at this time, not only the decorative properties of the coating have been completely lost, but also its protective properties have begun to be destroyed, indicating that the aging of the coating has tended to a serious stage.
标签:   环氧地坪 地坪 环氧地坪漆 环氧地坪施工