Operating skills of Best Water based coating manufacturers
Do you know the operating skills of Best Water based coating manufacturers? Let's take a look at it briefly!
1. Use clean water to adjust the coating to a suitable viscosity for spraying, and measure it with a Tu-4 viscometer. The suitable viscosity is generally 20 to 30 seconds. If there is no viscometer for a while, you can use the visual method: stir the paint with a rod (iron rod or wooden rod) and then lift it to a height of 20 cm and stop for observation. It is too thick; it is too thin if the line breaks as soon as it is off the top edge of the barrel; when the paint is just stopped at a height of 20 cm, the paint becomes a straight line, and the flow is instantaneously cut off and becomes dripping. This viscosity is more suitable.
2. The air pressure is recommended to be controlled at 0.3-0.4 MPa (3-4 kgf/cm²). If the pressure is too low, the paint solution will be poorly atomized, and pits will be formed on the surface; if the pressure is too high, it is easy to sag, and the paint mist is too large, which wastes materials and affects the health of the operator.
3. The spray guns of Best Water based coating manufacturers can move up and down and left and right. It is recommended to operate uniformly at a speed of 10-12 m/min. The nozzle should be sprayed straight on the surface to minimize the oblique spraying. When spraying to both ends of the surface, the hand that pulls the trigger of the spray gun should be loosened quickly to reduce the paint mist, because the two ends of the surface often have to be sprayed more than twice, which is likely to cause sagging.
4. When spraying, the next one should press 1/3 or 1/4 of the previous one, so that there will be no spray leakage. When spraying quick-drying paint, it must be sprayed in order at a time. The supplementary spray effect is not ideal.
5. When spraying in an open outdoor place, pay attention to the wind direction (it is not suitable to work in strong wind), and the operator should stand in the downwind direction to prevent the paint mist from being blown to the sprayed paint film by the wind to cause an unsightly granular surface.
The above is a brief introduction to the relevant knowledge about the operating skills of Best Water based coating manufacturers.
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