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Renovation construction has a lot to pay attention to, an unsophisticated may have many problems. In particular, there are many precautions for coating construction, which are easily affected by environmental and climatic factors as well as irregular operation. Today we are talking about problems a result of irregular operation and the need for response measures during the construction of
.
is common
often occurs on vertical surfaces or vertical surfaces connected to horizontal surfaces (angles), and the paint film at the flow hook is thicker than other surface paint films. Mostly due to excessive dilution and excessive amount of paint at one time. The corresponding countermeasures are: brush, to grasp the thickness of the coating, brush quickly uniform, if found local hanging, immediately with the brush to smooth, remove excess paint, brush hardness to be appropriate, bristles should not be too long too soft.
For spraying (spray gun distance coating surface is generally 15 cm - 25 cm, air pressure machine should be 0.2Mpa - 0.4Mpa), if found hanging, can wait for the paint film dry after sandpaper polishing, and then apply.
Lacquer film surface has particles polished again and again brushing
surface and grass cleaning is not thorough, dust, construction is not clean, dust falls on the surface of unciled paint; paint is not filtered, self-precipitation, impurities caused. In order to avoid surface particles in the paint film, to keep the room clean, dust-free, paint buckets, brushes to be clean. If surface particles appear, use sandpaper to polish and brush the paint again.
how to do the paint before brushing unevenly
If the paint is composed of two or more different color paint tones, the paint film may produce uneven color phenomenon. Before brushing with a wooden stick to mix the paint, brush if found that the paint film has uneven color, you can first paint brush some uniform paint and then paint the paint film uneven place brush, with the brush change, to properly brush a few times.
Lacquer film appears spot dry and then paint
after painting the head paint, if the paint film is too smooth, or there is moisture, dust, greasy, etc. on it, so that the paint film painted by the back channel can not adhere to the local place, forming the phenomenon of spot. The method of prevention and control is to dry the head paint, first wipe off the surface with soap oil, and then gently polish and wipe the surface with fine sandpaper, to dry and then brush the paint.
The paint film wrinkled uneven brush is not easy to be too thick
prompting the paint film to produce many twists and turns, high and low uneven phenomenon, mainly due to the paint film table dry, or the coating is too thick, paint film viscosity is too large, as well as exposure in the sun can lead to dry inside the table. Commonly used measures are to make the paint viscosity appropriate, each layer of paint film should not be too thick, paint bristles should not be too long too soft, while avoiding direct sunlight and strong winds.
bite bottom impact adhesion coating brush should pay attention to
bite bottom affects the adhesion between coatings, so that the paint film shift, thickness is uneven, and even the phenomenon of dents in the paint surface, mainly because the paint film formed by the front process can not withstand the corrosion of solvents used in the back process paint. In the construction, pay attention to a variety of coatings supporting the use, such as paint, primer matching. If the use of non-matching coatings, can be used between the two coatings can be matched paint as an isolation closed layer, while brushing a paint must wait for the former paint film after drying out, pay attention not to paint repeatedly in a place.
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