1. Construction methods: brush, roller, and spray must be taken individually.
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The roller coating is suitable for large-scale construction, and the efficiency is higher than that of the brush, but it will give rise to a fish-like skin effect. This method of construction is unpopular for those who do not like pockmarks. Moreover, roller coating costs nearly 20% more material than brushing, artificially increasing the cost.
Brush painting is manual brushing and is a commonly used construction method. The advantages of the brush coating method are the saving of paint, the simplicity of the tools, the ease of construction, the ease of handling, the flexibility and the strong adaptability to paint varieties, which can be used for general paints. However, the disadvantage of the brush coating method is manual manipulation of labor intensity, low efficiency, not suitable for quick-drying paint, if the operation is not fully cooked, the action is not sensitive, the paint film will produce brush marks, sag, brushing uneven defect.
Spraying is divided into two types, one is air spraying and the other is high pressure airless spraying. Air spray will leave a lot of bubbles on the wall, although the construction speed is fast, but the effect will be very poor and is not recommended for indoor use. High-pressure airless spraying has just begun to become popular in the country in recent years, but in foreign countries, high-pressure airless spraying of interior and exterior latex paints has long been widely used. The detailed construction method is to use a special high-pressure airless sprayer to deliver the high-pressure paint to the spray gun through a high-pressure hose, and form a smooth and dense coating on the surface of the wall after atomization by the release pressure of the spray gun.
2. Identification of construction quality tips
The simplest and most practical method is to use a flashlight to shine along the wall. Under the strong flat lighting, any cracks or unevenness are obvious at a glance.
3. Buying: Don't blindly pursue products with many functions
It is best to buy brands with a certain degree of recognition. In order to prevent some unscrupulous construction companies from “converting princes and princesâ€, consumers are better able to purchase after asking the construction master. At present, there are many kinds of paints in the paint market, and the concept of various functions of the merchants is also very good. Consumers must pay attention to choosing their own actual construction conditions when purchasing, and they should not blindly pursue products with many functions.
4. Select coating construction team to see the qualification
The Coatings Professional Committee of the Guangdong Coatings Industry Association has started to implement the qualification certification system for building coating companies in the coatings and coating industries since last year, in accordance with the industry-standard requirements for the “Regulations for Construction and Acceptance of Architectural Finishing Engineering†promulgated by the Ministry of Construction. The construction units that obtain the qualification certificates are all subject to rigorous assessment, and the construction level and reputation are all relatively reliable.
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