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    Home > Coatings News > Paints and Coatings Market > The protective effect of epoxy floor paint coating

    The protective effect of epoxy floor paint coating

    • Last Update: 2020-12-24
    • Source: Internet
    • Author: User
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    Epoxy floor paint is widely used to protect concrete and reinforced concrete structures from a variety of aggressive gases and liquids. These coatings have many advantages: such as high chemical stability; Can be applied to the surface of complex forms; There are many varieties of colors; Easy to update and service, etc. The disadvantage is poor permeability of steam, gas and moisture and short life.most paint coatings are used for metal corrosion protection. When painting concrete surfaces, the following characteristics must be considered compared to metals: high roughness and porousness of concrete, surface aquifer adsorption water, pore water and chemically active substances, starting with calcium hydroxide. Therefore, the brush material must first have the characteristics of reduced resistance and low sensitivity to surface water adsorption.protection of reinforced paint coatings depends to a large extent on the surface conditions of reinforced concrete structures. The capillary tube-porous surface of concrete can be immersed at a depth of 1-3 mm with the underlying coating, depending on the tightness of the concrete. The coating layer has the best adhesion when the surface pore rate is not greater than 5%-7%. When the porosity rate is high, the consumption of primer needs to be increased (approximately 0.1 hours/m2 on average). When the humidity of the concrete surface is less than 5%, the adhesion of epoxy floor paint is greater. Concrete surfaces that need to be coated should not be oily, dusty, and remove bumpy protrusions.
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