Painting should also have tricks

There should also be tips for painting:

Dalian metal plastic spray paint uses clean water to adjust the paint to the viscosity suitable for spraying and measure it with tu-4 viscometer. The suitable viscosity is generally 20 ~ 30 seconds. If there is no viscometer at the moment, the air pressure is better controlled at 0.3 ~ 0.4 MPa (3 ~ 4 kgf / cm2). If the pressure is too small, the paint liquid atomization is poor, and the appearance will form pitting; Excessive pressure is easy to flow and hang, and the paint mist is too large, which not only wastes the paint, but also affects the health of operators.

The specific size of the interval shall be properly adjusted according to the variety, viscosity and air pressure of the coating. The spraying interval of slow drying paint can be longer, and the spraying interval of fast drying paint can be closer; When the viscosity is thick, it can be closer, and when the viscosity is thin, it can be farther; When the air pressure is high, the interval can be longer. When spraying on both ends of the object surface, the hand that pulls the trigger of the spray gun should be loosened quickly to reduce the paint mist. Since both sides of the object surface often need to be sprayed more than twice, it is a relatively simple place to form sagging.

Dalian metal plastic spray painting, the next one should press 1 / 3 or 1 / 4 of the previous one, so that there will be no leakage. When spraying quick drying paint, it needs to be sprayed in sequence at one time, and the supplementary spraying effect is generally unsatisfactory. When spraying in the open outdoor area, pay attention to the wind direction (it is not suitable to work in strong wind). The operator should stand in the downwind direction to prevent the paint mist from being blown by the wind to the sprayed paint film to form an ugly granular appearance. Difficult before easy, inside before outside. High place first and then low place, small area first and then large area, so that the sprayed paint mist will not splash on the sprayed paint film and damage the sprayed paint film.

Removing the root causes is a good way. Light green pigment extracted from plants can enhance the photosensitivity of plants and the light sensitivity of photocatalysts. It makes up for the weakness of photocatalyst. Even in indoor environment, even in very weak light environment, photogreen can also play a very strong role in removing formaldehyde. There are many chemical elements in the paint and many harmful substances. If pregnant women do not contact these harmful substances during embryonic development in the first three months of pregnancy, the harmful substances will cause embryonic development deformity, commonly cleft lip and palate. If they live in these harmful substances for a long time in the later stage of pregnancy, it will affect the development of fetal brain.

The main problem of Dalian metal plastic painting stainless steel painting is that the stainless steel surface is very smooth, and the general paint can not be attached, resulting in paint film falling off and paint falling off. The special paint for stainless steel can ensure that there is no problem in brushing. After the primer is dry, the topcoat shall be applied. The color of the primer is relatively single and has no decoration, but it can ensure adhesion, no paint falling off and good anti rust ability. Polyurethane paint, epoxy paint, fluorocarbon paint, acrylic paint, etc. can be selected as the finish, which shall be determined according to the specific construction environment and requirements.