The necessity of three-layer construction of floor paint!

Introduction

Generally speaking, the epoxy floor paint coating system consists of three layers of floor paint film on the bottom, middle and surfa.

Each coating has a functional definition: the thick floor paint coating system has a temperature difference and humidity difference between the primer and the top coat during use, and the temperature and humidity difference will cause stress in the floor paint coating syst.

The role of each floor paint coating in the floor paint coating system has a clear division of labor: the primer has high adhesion and cohesion to the substrate and topcoat, and seals the harmful substances in the substrate to prevent it from seeping up and affecting the surfa.

The middle coating is a transition layer, which plays the role of thickening, increasing coverage, forming patterns and increasing penetration resistan.

The topcoat is responsible for resisting the damage of external corrosive media (light, oxygen, water, harmful chemicals), and further plays the role of beautification and decorati.

The matching principle of epoxy floor paint coating system is "no layer-to-layer interface between layer.

The common problems of mismatching between floor paint coatings are mainly manifested in the following three aspects: poor layer adhesion, when there is external force acting on the floor paint coating system, it is easy to crack and fall off; the penetration of chemical substances can easily lead to Bubble, fall o.

Unreasonable penetration and unreasonable penetration of the base coat can easily lead to poor construction of the top co.