7 tips to master in water-based paint processing

One of the most important methods of water-based paint processing, spray object surface, can obtain a thin and uniform paint film, for different geometric shapes, there are small holes, gaps, uneven uneven places, the paint can be evenly distributed; However, the processing with paint method also need to master some operating skills:
1, with clean water to the paint to the appropriate viscosity of the spray, to apply -4 viscosity meter measurement, the appropriate viscosity is generally 20 to 30 seconds. If there is no viscosity meter for a while, visual method can be used: use a stick (iron rod or wooden stick) to stir the paint to 20 cm high to stop observation, such as paint liquid in a short period of time (seconds) continuous line, is too thick If one off the barrel along the line is too thin, to 20 cm high just stopped, the paint liquid into a straight line, instantaneously cut off the flow into a drop, this viscosity is more suitable .
2, air pressure is best controlled at 0.3-0.4 megapa (3-4 kg force/cm2). The pressure is too small, the paint liquid atomization is bad, the surface will form a numbing point, the pressure is too large and the paint fog is too large, both waste material and affect the health of the operator.
3, the distance between the nozzle and the surface is generally 300-400 mm is appropriate. Too near easy to hang, too far paint fog is not uniform, easy to appear numb spots, and nozzles far away from the surface paint fog in the way caused waste. The specific size of the distance should be adjusted according to the type of coating, viscosity and the size of the air pressure. Slow dry paint spray distance can be a little farther, fast dry paint spray, a little closer, viscosity thick can be closer, viscosity can be a little farther, air pressure can be a little farther, pressure hours can be closer, so-called closer point refers to a small range of adjustments between 10 mm-50 mm, if beyond this range, it is difficult to obtain the ideal paint film.
4, spray gun can be used up and down, left and right movement, it is best to 10-12 meters / minute speed even operation, nozzle to be straight on the surface spraying, to minimize oblique paint processing. When sprayed to both ends of the surface, the hand of the trigger to quickly loosen, so that the paint fog is reduced, because the two ends of the surface, often to accept more than two spray paint, is the easiest place to cause hanging.
5, paint processing to press the next one 1/3 or 1/4, so that there will be no leakage phenomenon. When the paint is fast dry, it needs to be sprayed sequentially at a time. The re-injection effect is not ideal.
6, when spraying in an open place outside, pay attention to the wind direction (high winds should not be suitable for work), the operator should stand in the direction of the wind, to prevent the paint mist from being blown to the sprayed paint film caused by ugly grainy surface.
7, the order of painting is: first difficult, then easy, first in and out. First high and then low, first small area and then large area. This will not cause the sprayed paint mist to splash on the sprayed paint film, destroying the sprayed paint film.