There are pinholes in the coating layer, what is this? Below, understand with the small edition of Hubei furnace lining material manufacturers!

1, the chemical reaction between the relevant components of the coating produces microgases

2, the powder is not fully infiltrated by water, the surface of the groove or internal micropores adsorbed gas is closed by the paint slurry colloid, and when the slurry stands for a number of time, that is, it gathers into micro "bubbles", leaving microholes when drying.

3, the speed of the white mold is too fast when dipping, the gas adsorbed on the surface of the rough white mold can not be discharged in time and dispersed under the slurry coating, and the drying process forms microholes

4. Improper operation of the coating mixing process causes air to be involved in the slurry

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