What should be noted when applying real stone paint in the double blow of high temperature and heavy rain in summer?
Summer-related influencing factors
1. Rainfall and high humidity influence
In summer, which coincides with the rainy season, the humidity in the air is high and even saturated, which has a significant impact on the construction of real stone paint. The coating thickness of real stone paint is relatively large, and its drying time is inherently longer than that of ordinary coatings. This is even worse under such climatic conditions.
Therefore, based on the climatic conditions at that time, the moisture content of the base surface should be strictly checked before construction. Moreover, construction cannot be carried out immediately after rain. It is necessary to wait until the base surface of the wall is completely dry (with a moisture content of less than 10%) before proceeding.
If it rains, or if there is a forecast of rain within 24 hours, or if the air humidity exceeds 85%, construction shall be halted. The real stone paint should not be exposed to rain within 24 hours after application to avoid damaging the paint film and causing subsequent rework.
Under high-humidity conditions, the moisture in the real stone paint evaporates slowly and the drying time is prolonged. Before applying the topcoat, it is essential to ensure that the real stone paint is completely dry; otherwise, the water vapor that has not completely evaporated within the paint film will be trapped, leading to the occurrence of whitening.
2. High temperature and strong wind influence
In summer, the sun is intense. Prolonged exposure to the sun can cause the surface temperature of the base layer to be too high, making the real stone paint dry too quickly and easily leading to joint and mottled phenomena. During construction, it is advisable to avoid direct sunlight, such as working on the west wall in the morning and the east wall in the afternoon. During construction, depending on the weather conditions, add water appropriately to dilute the real stone paint to slow down the drying speed.
Summer is windy, so construction should be avoided on windy days. Construction at this time is likely to cause a large amount of sand to fall off, resulting in an increase in consumption. Moreover, it is difficult to spray evenly in strong winds, which can easily cause mottling. When there is a strong wind, the real stone paint dries too quickly and is prone to cracking and joining.
In addition, when applying exterior true stone paint, the following points should also be noted:
To ensure the overall aesthetic appearance of the coating, the primer and the main coating should be products from the same manufacturer.
2. The base surface should be dry, flat and firm. Before construction, the surface mortar, loose dust and other attachments need to be removed. The cement surface with voids removed and repaired by plastering should undergo alkali removal treatment.
3. Before using the primer, it should be stirred evenly before application. The dipping of the roller should be appropriate, and the brushing must be even without any missed areas or sagging. The primer must be completely dry before the real stone paint spraying construction can be carried out.
4. Before each spraying session, a test spray should be conducted on a test board in advance. Only after confirming the effect should large-scale spraying be carried out. When spraying real stone paint, the gun nozzle must be perpendicular to the wall surface and should not be tilted at a large Angle to avoid mottling caused by different arrangements of sand grains.
5. During construction, doors, Windows and areas not under construction should be covered and protected to prevent contamination and reduce the workload of cleaning.
6. The construction sequence from bottom to top is strictly prohibited to avoid color pollution.
7. Before applying the topcoat, it is essential to ensure that the stone paint is completely dry. The topcoat should be applied evenly by roller coating without sagging and with as few joints as possible.
8. Try to use suspended baskets for construction as much as possible. Scaffolding construction is prone to causing joint marks and mottling. And the same batch of products should be used on the same wall.
Safety Precautions for Summer construction
On-site, it is essential to strictly manage the personal safety of construction workers. The hotter the summer, the more workers neglect to fasten safety ropes due to fear of the heat, which leads to serious consequences such as workers falling from heights.
In addition, special attention should be paid to the heatstroke prevention work for outdoor construction workers in summer to avoid them working in high-temperature environments for long periods of time, which may lead to heatstroke, fainting and other safety accidents.
1. Rainfall and high humidity influence
In summer, which coincides with the rainy season, the humidity in the air is high and even saturated, which has a significant impact on the construction of real stone paint. The coating thickness of real stone paint is relatively large, and its drying time is inherently longer than that of ordinary coatings. This is even worse under such climatic conditions.
Therefore, based on the climatic conditions at that time, the moisture content of the base surface should be strictly checked before construction. Moreover, construction cannot be carried out immediately after rain. It is necessary to wait until the base surface of the wall is completely dry (with a moisture content of less than 10%) before proceeding.
If it rains, or if there is a forecast of rain within 24 hours, or if the air humidity exceeds 85%, construction shall be halted. The real stone paint should not be exposed to rain within 24 hours after application to avoid damaging the paint film and causing subsequent rework.
Under high-humidity conditions, the moisture in the real stone paint evaporates slowly and the drying time is prolonged. Before applying the topcoat, it is essential to ensure that the real stone paint is completely dry; otherwise, the water vapor that has not completely evaporated within the paint film will be trapped, leading to the occurrence of whitening.
2. High temperature and strong wind influence
In summer, the sun is intense. Prolonged exposure to the sun can cause the surface temperature of the base layer to be too high, making the real stone paint dry too quickly and easily leading to joint and mottled phenomena. During construction, it is advisable to avoid direct sunlight, such as working on the west wall in the morning and the east wall in the afternoon. During construction, depending on the weather conditions, add water appropriately to dilute the real stone paint to slow down the drying speed.
Summer is windy, so construction should be avoided on windy days. Construction at this time is likely to cause a large amount of sand to fall off, resulting in an increase in consumption. Moreover, it is difficult to spray evenly in strong winds, which can easily cause mottling. When there is a strong wind, the real stone paint dries too quickly and is prone to cracking and joining.
In addition, when applying exterior true stone paint, the following points should also be noted:
To ensure the overall aesthetic appearance of the coating, the primer and the main coating should be products from the same manufacturer.
2. The base surface should be dry, flat and firm. Before construction, the surface mortar, loose dust and other attachments need to be removed. The cement surface with voids removed and repaired by plastering should undergo alkali removal treatment.
3. Before using the primer, it should be stirred evenly before application. The dipping of the roller should be appropriate, and the brushing must be even without any missed areas or sagging. The primer must be completely dry before the real stone paint spraying construction can be carried out.
4. Before each spraying session, a test spray should be conducted on a test board in advance. Only after confirming the effect should large-scale spraying be carried out. When spraying real stone paint, the gun nozzle must be perpendicular to the wall surface and should not be tilted at a large Angle to avoid mottling caused by different arrangements of sand grains.
5. During construction, doors, Windows and areas not under construction should be covered and protected to prevent contamination and reduce the workload of cleaning.
6. The construction sequence from bottom to top is strictly prohibited to avoid color pollution.
7. Before applying the topcoat, it is essential to ensure that the stone paint is completely dry. The topcoat should be applied evenly by roller coating without sagging and with as few joints as possible.
8. Try to use suspended baskets for construction as much as possible. Scaffolding construction is prone to causing joint marks and mottling. And the same batch of products should be used on the same wall.
Safety Precautions for Summer construction
On-site, it is essential to strictly manage the personal safety of construction workers. The hotter the summer, the more workers neglect to fasten safety ropes due to fear of the heat, which leads to serious consequences such as workers falling from heights.
In addition, special attention should be paid to the heatstroke prevention work for outdoor construction workers in summer to avoid them working in high-temperature environments for long periods of time, which may lead to heatstroke, fainting and other safety accidents.