The necessary environmental requirements before the construction of epoxy floor: epoxy floor is a product of high quality and high demand. Why does epoxy floor construction require high environmental requirements? The following is a detailed explanation for you. 1. Hardness: the strength of the base of the coating or the marking of the concrete base. The hardness of the coating base fundamentally determines the service life of the coating, the adhesion of the coating and the application effect of the coating.
Smoothness refers to the key index of whether the base surface is smooth or not.
The smoothness of the base surface fundamentally determines the smoothness of the coating. The smoothness of the coating directly affects the application effect of the coating.
Thickness: refers to the thickness of the concrete layer on the most surface of the coated base (structural layer), not the thickness of the whole base.
The thickness is too thin, so it is easy to peel and hollowing. The minimum thickness of the structural layer required for the surface layer is 5CM and the hardness is above C25.
Humidity: refers to the moi彩色沥清地坪sture content of the coating base and the air humidity of the coating environment.
Different floor coatings have different requirements for the moisture content of the base surface. Epoxy floor coatings require less than 8% and methyl binoleate resin requires about 10%.
If the moisture content of the base surface exceeds the standard, there may be blisters, drums and shedding.
The moisture content in the air is humidity, which can be measured by hygrometer. Generally, the best humidity for epoxy floor pai透水地坪nt construction is below 85%, but not below 30%.
Temperature: the temperature of the coating environment can be measured by thermometers.
Different types of floor coatings have different temperature requirements. The epoxy requirement is above 5 C, and the MMA requirement is above -25 C.
Of course, the temperature is too high to work. One is dangerous, the other two is too fast curing.
Cleanliness: refers to the absence of other coatings or sundries, including dust, oil, cement residues, other paints, etc., except for floor coatings.
Ventilation degree is the index of ventilation in the coating environment.
Because the heat and moisture generated when two or more components of floor coating solidify must be taken away by the flowing air in time, the painting environment is required to be relatively ventilated, but not too ventilated.
Roughness: refers to the smaller distance between the base surface of the coating and the roughness of the tiny valley.
The local distance (wave distance) between two peaks or troughs on the ground surface is very small, which requires 1 mm. It belongs to geometric error.
The smaller the roughness is, the more smooth the surface is. The smaller the contact area ratio between the coating and the substrate is, the lower the adhesion of the coating will be, and vice versa, the higher the adhesion of the coating will be.