Problems encountered in waterborne epoxy – winter construction

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during this period, increase the human investment and complete the construction as soon as possible, avoid low temperature and reduce the impact of low temperature on the epoxy floor.

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The temperature of the construction environment shall not be lower than 5 ℃ and the humidity shall not be greater than 80%.

The second coat of paint can be constructed only after the paint has been completely dry.

Generally, the construction starts at 10 a.m.

The reduction of curing performance will cause the surface of the film to dry slowly, which will increase the possibility of the film being polluted by dust, sundries, or insects.

When the temperature is low, some manufacturers excessively pursue the drying speed and use the curing agent with too fast drying speed, which will lead to the defects of paint film such as cracking, yin and Yang surfaces, loss of gloss and so on.

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shall be sealed with thermal insulation materials to avoid freezing damage, and shall be stored in a room with high temperature.

However, at low temperature, the viscosity of floor coating will be doubled and the leveling performance will be reduced.

Methods are always more difficult than difficulties! According to the above problems, we can try the following methods: 1.

When extending the construction interval, it must be stirred evenly.

Do not make a fire or smoke near the coating stacking place, otherwise once ignited, the barrel coating may cause explosion.

Adding solvent in order to solve the problem of high viscosity, lack of fluidity and difficult mixing of floor paint at low temperature, less than 5% solvent with fast volatilization rate can be added, which can increase the fluidity of floor paint; At the same time, the mixing time is three to five minutes longer than usual.

For coatings that do not rely on leveling, trowel marks and other defects will appear due to poor flow and leveling performance during scraping.

In case of fog, frost, snow and other weather, the ground is covered with a layer of fog or ice, and construction cannot be carried out under such conditions.

For example, turn on the heating and other equipment to increase the room temperature and reduce the construction difficulty.

After the paint film is fully dry, open the doors and windows for ventilation.

During the transportation of construction materials, water-based coatings, adhesives, etc.

No matter when the construction is carried out, we only need to find out the problems we will encounter before the construction, take measures according to local conditions, prevent from all aspects, and be serious and down-to-earth at each step, so as to build the most perfect floor!..

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Attention should be paid to winter construction: first, close the doors and windows, so that on the one hand, the indoor temperature can be guaranteed, on the other hand, the rough and uneven phenomenon of outdoor sand blowing on the wet ground can be avoided.

If putty is used in construction, it shall not be scraped too thick, and it must be thoroughly polished after drying to achieve flat ground, no paint falling off with nail buckle and smooth hand feeling, otherwise it will lead to cracking and falling off.

When workers smoke or make a fire for heating, they must pay attention to safety.

However, if the temperature is lower than 5 ℃, the reaction will slow down, which will seriously affect the curing performance of floor coatings.

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If conditions permit, double mixers can be used to mix in the opposite direction.

During construction, the construction shall be carried out in strict accordance with the requirements in the product description and the dilution ratio shall be strictly controlled; One time thick coating is strictly prohibited to prevent whitening, blistering and pinholes caused by too thick spraying; It is strictly forbidden to use excessive curing agent to improve the drying speed, otherwise the paint film will be too brittle and cause cracking.

3、 Reduce the quality of the coating film.

During construction, the surface temperature must be 3 ℃ higher than the dew point temperature.

The indoor temperature is higher than that outdoors and is easier to control.

2、 The viscosity increases exponentially.

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and ends at 3 p.m.

Since the low temperature will prolong the curing time, the construction interval needs to be extended.

The solvent-free self leveling coating ensures the flatness of the floor by leveling.

Cast In Loop

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When spraying various coatings, the construction personnel shall paint in strict accordance with the temperature and humidity in the product description.

In winter, the epoxy floor paint is best constructed indoors.

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Attention should be paid to for the best effect.

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1、 For the construction of two-component floor paint that slows down the paint reaction, components a and B need to be mixed in proportion and stirred evenly on site to make the two-component materials fully react, so as to ensure the effect of floor coating.

Due to the slow curing reaction or no curing at all, the strength, hardness and wear resistance of the coating film will be reduced, and it will be more prone to floor separation, peeling and other problems, which will seriously affect the service life of the epoxy floor.

It is not recommended to use the curing agent with too fast drying speed.

Increase the room temperature.

Separate the low-temperature construction and control the construction period in winter.

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