Some figures show that 90% of the problems such as color loss, powder loss and color difference after painting in the current market are caused by improper construction. Unscientific treatment of wall base, excessive mixing of paint with water, backward construction tools and poor worker skills will hinder the effect of paint beautifying the wall.

If you choose a home decoration company to paint, you must be wary of this phenomenon: the decoration company subcontracts layer by layer, and finally goes to the small construction team to save material money by adding more water. If the construction team fails to construct according to the standard water volume, the water volume is too large. For example, the room that should use five barrels of emulsion paint is painted with two barrels of paint. It should be painted three times and only two times. The consequences of this construction can be imagined, which will reduce the scrubbing resistance, mildew and alkali resistance of the film, such as powder dropping, slightly scrubbing with a wet cloth to expose the substrate, and the high-grade paint that should have luster has no luster and the surface is rough.

At present, the main factors affecting the coating construction quality in the home decoration market are as follows:

Substrate treatment

In addition to the selection of qualified putty powder, adhesive, wall lining and other materials, the final coating effect will be affected by the wall substrate material, the flatness and cleanliness of the treatment (including the removal of the old coating film, mildew, floating dust, oil stain, etc. of the old wall), as well as the humidity and acidity of the wall surface.

Selection and application of primer

Painting primer can not only prevent the wall from alkali efflorescence, discoloration, mildew and other problems, but also increase the adhesion between the wall and the finish paint, making the finish paint film more flat and firm. Therefore, painting primer is an essential link in the coating process of new houses. The primer should be matched with the top coat, but some decoration guerrillas or illegal decoration personnel often use some low-quality primers, or even do not use the primer at all, resulting in large paint consumption, film discoloration, peeling, blocking, mildew and other painting problems.

Construction operation

Before construction, whether the paint dilution ratio is appropriate, whether the mixing is uniform, and whether the operator is skilled in construction technology are all critical. Excessive dilution will make the paint not covered and powdered, and glossy paint will have defects such as light loss and color difference. In order to shorten the construction period or save the cost, the construction not in accordance with the specifications is one of the main reasons for the coating quality can not be guaranteed.

Construction environment

Pay attention to the climatic conditions during construction and the conditions of the construction site, such as temperature, humidity, whether it is windy or rainy, indoor ventilation, and whether the painted surface and tools are clean. During construction, after one kind of paint is completely dried (about 7 days in summer and about 15 days in winter, extended appropriately in wet weather and poor ventilation), another kind of paint shall be applied, and the doors and windows of each kind of paint shall be opened during construction and drying to maintain ventilation, otherwise it is easy to cause the film to swell and pulverize.

Product features

At present, there are many brands and varieties of interior wall coatings in the market. The construction quality problems caused by not knowing the construction characteristics of the products and not strictly following the construction instructions of the products are also one of the problems that can not be ignored. For example, excessive dilution causes sagging, blooming and other phenomena, and serious brush marks, roll coating marks, etc. due to improper selection of construction technology.