Effect of moist air on the construction of floor paint

In southern China, especially in Guangdong, in the spring of February and March of each year, after the cold air recedes, the warm and humid air on the ocean enters inland, and the warm wet air stream collides with the dry cold air stream, and water droplets are generated. At the same time, the humidity at sea increases the humidity throughout Guangdong.

After the humidity increases, the construction of the floor paint will have a great impact.

First, epoxy floor paint

1, relative humidity. The best construction environment for epoxy floor paint is relative humidity less than 75% and temperature between 10-35°C. However, the humidity in the south of Nantian directly led to the ground, and the water droplets formed on the wall indicated that the humidity was saturated and reached 100%. If construction is performed at this time, the performance of the floor paint will be seriously affected.

As for the effect, condensate will destroy the curing agent, causing whitening, loss of light, and stickiness.

2, concrete moisture content. Floor paint is suitable if the water content of the concrete is less than 9%. If the water content of the concrete exceeds the standard, the adhesion of the floor paint to the ground will be affected.

Second, concrete seal curing agent

The requirements for air relative humidity in construction requirements for concrete seal curing agents are less than 80%. Because the concrete seal curing agent is a water-based paint, if the air humidity is too high and the water content of the concrete is too high, the concrete seal curing agent will always dissolve in water and cannot react with the inorganic compounds and calcium oxide inside the concrete, and thus it is even more unproductive. Perform secondary reactions.

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