As the weather transitions from autumn to winter, the weather becomes cooler with climate characteristics such as coldness, rain, and humidity, and the temperature drops significantly. At this time, interior and exterior wall coating projects will encounter many wall problems during construction. What should be paid attention to during winter construction of interior and exterior wall coating projects?

1、 Winter construction conditions and requirements

For coating construction, qualified substrates have five basic characteristics: sturdy, smooth, dry, neutral, and clean. For the requirements of coating construction conditions: the construction environment temperature must be controlled above 5 ℃, and the environmental humidity must be controlled within 85%, otherwise construction cannot be carried out. Click here to download construction technology materials for free

2、 Coating construction conditions and requirements

For the construction of interior and exterior wall coatings, some projects still need to be carried out in winter when the temperature is below 5 ℃ due to project requirements. To ensure construction quality, the following matters should be taken seriously during the construction period:

1. Grassroots inspection and handling

Base treatment is the foundation of painting engineering, and its contents include: removing dust, oil stains, and loose materials on the surface of the base; Reduce or eliminate surface defects; Improve the physical or chemical properties of the base surface.

2. Putty construction

For the construction of the interior and exterior wall coating manufacturer system, before entering winter construction, it is necessary to ensure that the substrate is dry and the wall surface temperature is maintained. When the temperature is below 5 degrees Celsius during the day, it is best to apply on the wall surface with direct sunlight. At night, the low temperature should be above 0 ℃, otherwise construction cannot be carried out to avoid freezing of the putty layer.

3. Polish the putty and assess its drying condition

The putty must be completely dry before polishing, in order to control the non stick sandpaper and surface smoothness after the putty is completely dry. If the putty is not dry or frozen, there will be a phenomenon of putty sticking to sandpaper during polishing, and the surface is not easy to polish flat.

Construction of 4 Coatings

Coating construction: before coating, it is necessary to confirm that the substrate is completely dry, and the construction temperature of water-based coating should be controlled above 5 ℃. When the temperature is lower than zero in the drying and film forming process, lotion will be frozen and lose its bonding and film forming functions, so as to ensure that the low temperature in the film forming and drying process cannot be lower than 0 ℃. Click here to download construction technology materials for free

Storage of 5 Coatings

Entering winter, the interior and exterior wall paint manufacturers should store the paint on site in a unified indoor classification and ensure that the indoor temperature is above 0 ℃. When the temperature is below 0 ℃, heating or electric heating should be used to increase the indoor temperature. It is strictly prohibited to use open flames to increase the indoor temperature. Unused coatings during construction should be placed indoors, and products that have been frozen cannot be reused.

6. Paint film maintenance and finished product protection

 The time for the paint film to dry and achieve performance on the surface of an object is 7 days at a standard temperature of 25 ℃. In winter, when the temperature of the coating construction environment is generally low, the drying and performance time of the paint film should be relatively extended. During this period, efforts should be made to minimize pollution and bumps on the surface of the paint film, and to avoid repair effects caused by pollution and bumps that may affect the overall effect. When entering winter construction, corresponding protective measures should be taken according to the construction conditions on site to avoid the coating from freezing as much as possible. To ensure the smooth progress of engineering painting quality and construction progress. Jiangxi Interior and Exterior Wall Coating Manufacturer