Water paint construction: brush roll spray which is good?

Water paint is developing rapidly, but from the cement wall to the interior and exterior wall replaced with watercolor paint, many people tend to pay attention only to the results, and ignore its coating process, so that when there is decoration needs to find:
brushing? Rolling? Spraying?
water paint just brushed?
's the difference between these ways?
why are there so many construction methods?
not only the construction master's business, but also with you (the wallet) to choose which construction method. Today for you to share the advantages and disadvantages of several construction methods, so that we can choose the right construction methods.
brush
use tools: brush
is deeply affected by advertising, ordinary people's first impression of water paint construction is brushing
Chinese
.
brush is hand-painted with a variety of sizes, shapes of brush on the water paint, according to a certain operating method of water paint coated on the surface of the coating, after drying and curing to form a coating, brushing the construction of the wall, easy to repair. When applying with a brush, the brush should take the first up and down after the left and right direction of coating, brush paint can not be too much to prevent dripping. The brush distance should not be pulled too far during coating to avoid the paint film being too thin. In the case of rough surfaces, edges, corners and protruding parts should pay more attention to, it is best to pre-coat one.
advantages of brush coating:
on the water paint loss is small, very economical
suitable for spraying can not be implemented or thickness is not easy to reach the location of construction


Disadvantages of brush coating:
work intensity
low productivity
coating thickness and unearing
Roll Coating
Use tools: roller
roll coating is also a high rate of mirroring construction, roller types (long hair, medium hair, short hair, wool) and quality will directly affect the final effect. And rolling paint is prone to uneven roller traces, these traces look good or not is to see the wisdom.
is applied with a roller, the water paint on the drum should be evenly distributed. When coating, the rolling speed should be maintained to a certain, not too fast. Do not press the roller too hard.
The advantages of roll coating: compared to
and brush coating, the one-time roll coating area is large, improve efficiency, reduce workload, save time and manpower




Labor intensity is relatively poor
decorative performance, the coating surface often leaves rolling brush marks
film thickness is not uniform
spraying
using tools: spray gun or sprayer
spraying is currently more advanced spraying method, through pressure to spray water paint, from a certain size of spray gun caliber sprayed, coated on the product surface, dried and solidified to form a coating.
high-pressure airless spray, which is the fastest coating method available, and a very thick paint film is available. Therefore, in order to achieve the specified paint film thickness, it is best to use airless spray construction methods. In the actual coating should be used first up and down after left and right, or first left and right after the vertical and horizontal spraying method. The use of airless spray requires greater skill, and the spray gun should be maintained at a horizontal distance from the painted surface to prevent the spray gun from swinging over long distances or arcs.
advantages:
good flatness, no poor texture. Because of water paint spray, water paint easy to achieve these parts, paint film final effect is good, sprayed on the wall of the water paint to form a smooth, dense coating, no brush marks, this brush, roll can not be compared.
construction is fast, 10-16 times faster than manual brushing. Spray more evenly and brightly.
spray method can obtain a thick and uniform, smooth and flat coating, the gaps, small holes and tilted, curved plane can be sprayed, high efficiency, adaptability.
Disadvantages:
spraying machine is more expensive
the technical level of construction personnel requires high
dosage is relatively more: the construction team's protection workload is large, because the water paint is foggy, so compared with other construction methods, more material consumption, increased material costs
repair difficult, non-spraying area protection workload is large: late maintenance trouble, late maintenance brushing or rolling, there will be repair marks.
Overall, the water paint construction method is not static, by the owner's budget and construction master's craft impact is relatively large, but also pay attention to the construction environment temperature, humidity, wind speed and other external factors. Three-point water paint seven-point construction, although simple to say, but it contains the above-mentioned factors.