In fact, epoxy resin refers to a general term for a class of polymers containing more than two epoxy groups in the molecule. It is a polycondensation product of epichlorohydrin and bisphenol A or polyol. Besides, how much do you know about it? Do you know what are the common problems in the construction of this material? Next, follow the epoxy resin manufacturers to find out below, I hope to help everyone.
The material has the characteristics of anti-corrosion, abrasion resistance, anti-skid, low pollution and strong decoration. It has been widely used in industrial floors and places where environmental requirements are required. However, due to the impact of construction quality and environmental factors, it is easy to produce some quality problems. The common problems during construction are as follows:
1. The surface is white
Refers to the whitening of the surface coating after the completion of the construction operation. There are several reasons: the humidity in the air is too high, and too much quick-drying agent is used in the drying process of the coating surface.
2. Bleeding problem
Bleeding means that when one color of the primer coating film is covered with another color of topcoat, the surface coating film will be discolored. The main reasons are the following: the primer is not completely dry, the primer and The color of the topcoat has color difference, and the paint contains variegated materials. Wrinkles, pinholes, fish eyes Wrinkles appear on the surface of the coating.
The main reason is that the drying speed of the inner and outer layers of the paint surface is inconsistent, which causes the surface layer to gather and peel.
3. Roughness and cracking
Roughness phenomenon refers to the appearance of granular materials with different sizes on the surface layer. The main reason is that the coating contains impurities that are not easily dissolved and external dust. The surface cracking phenomenon is due to raw material and construction quality problems, which lead to a decrease in the adhesion of the paint layer. Under the influence of external forces, peeling and cracking phenomena occur.
4. The paint surface is more flowery
It means that the color of the surface of the coating film is not uniform, and there are streaks and messy colors. The reason is that the ingredients for the face are applied improperly and the application is uneven during the construction process.