One, how to maintain the coating film of water-based paint
For water-based wood paints, the drying time of the paint film can generally be divided into two stages: In summer, due to the higher ambient temperature, the paint film typically takes seven days to fully dry. In winter, although the air is relatively dry and the humidity is low, the lower ambient temperature results in a longer drying time, typically ranging from 14 to 20 days. The specific maintenance time depends on the local temperature.
Winter Waterproof Wood Paint Film Maintenance Precautions: Pay attention to dust protection in the construction environment. In winter, the climate is generally dry and poorly ventilated, with a lot of dust, which can easily cause the paint film to become dry and uneven. Therefore, it is best to keep doors and windows closed during construction. Appropriate equipment can be used to accelerate the curing speed of the paint film, such as using a tungsten lamp to illuminate. In the north, it is possible to consider turning on the heating system for construction.
After the paint film has completely dried, open the doors and windows to accelerate ventilation and drying once the paint film no longer adheres to the surface. In winter, although the curing speed of single-component water-based wood paints is relatively slow, the paint film's hardness will gradually increase over time, so there is no need to panic. Avoid proximity to heaters, fireplaces, and radiators to prevent overheating, which can cause cracking and detachment of the paint film on wood furniture. During winter, the paint film requires a longer curing time. Therefore, during the period when the paint film is curing and reaches its true hardness, it is important not to allow hard objects to scratch the paint film or directly rub against its surface, which can cause physical damage to the paint film.
Two. How to handle the hazy appearance of water-based paint film.
The hazy appearance of water-based paint films may be caused by low atomization air pressure, too thick paint film, insufficient leveling time, or excessively high ambient temperature. If you encounter this issue, don't panic. First, use sandpaper to abrade the hazy areas, and then use a polishing machine to polish. If the haze is severe, it is recommended to directly sand the surface smooth and then re-spray. When spraying, be sure to set the correct air pressure, control the spray flow rate, and ensure that the ambient temperature is within the range specified in the coating process card.