Paint is a large category of “eight major categories of building materialsâ€. Due to the large construction area, once the material itself is contaminated, it will cause greater damage to the health of family members. Therefore, safety and environmental protection are becoming more and more important when purchasing paint. Of course, in practice, you should also pay attention to the amount of paint required for scientific calculations, to avoid the situation that the paint is not enough or the surplus is large.
The lower the 4 environmental indicators, the better.
Net taste paint, bamboo charcoal paint, aloe vera paint, anti-formaldehyde paint, diatom mud paint, children's paint... With more and more decoration safety accidents, many decoration owners are wary: home decoration must choose the safest and most Environmentally friendly material. However, the paint products on the market are varied and famous. Especially in recent years, the main "green" and "safe" paints are endless, making people dazzled.
To determine the quality of the paint, the key depends on four data: VOC, benzene, formaldehyde, heavy metal content. According to the national "Restriction of Hazardous Substances for Interior Wall Decoration Materials" (GB18582-2008), qualified wall paints should meet the following standards: VOC ≤ 120g / L; benzene, toluene, ethylbenzene, xylene total ≤ 300mg / Kg; free formaldehyde ≤ 100mg / kg; lead Pb ≤ 90mg / kg, cadmium Cd ≤ 75mg / kg, chromium Dr ≤ 60mg / kg, mercury Hg ≤ 60mg / kg. In general, the lower the data, the better. For example, the VOC content of some paint products is as low as 30-40g/L, and the free formaldehyde is less than 10 times of the standard, which means that these products are more environmentally friendly. However, these data are not mandatory for the paint bucket. The industry's main knowledge of the product's environmental data requires the relevant documents and quality inspection reports to be obtained from the brand or the store. At the same time, the purchase of paint products can also see whether the product has China's environmental label and 3C certification, the product must also clearly indicate the company name, address, production date, batch number, shelf life, implementation standards, contact telephone and other information.
Brushing area = area used × 3
In addition to taking into account environmental and safety issues, it is also a headache to buy a lot of paint. Buying more is easy to cause waste, but buying less does not mean that you can solve it by purchasing it. For some color-matched paints, when the purchase quantity is insufficient and needs to be replenished, it is often found that it is difficult to recall the same color as the original paint. This leads to the chromatic aberration of the wall paint, which greatly affects the appearance of the wall. Therefore, before the construction, the paint would rather buy a little more and don't buy less, especially the tinted paint. According to a calculation method in the industry, the painting area of ​​the paint = room use area × 3 (or = building area × 2), 5L of paint per barrel can be painted 60-70 square meters of wall (once). Generally speaking, the wall needs to be brushed once and twice. According to this formula, a space of 100 square meters of building area requires about 30L of topcoat and 15L of primer. When buying paint, it is necessary to see whether there is any agglomeration or discoloration when the paint is opened. Whether it has exceeded the shelf life, if there is any problem, it should be replaced in time to avoid the use of inferior paint to affect the normal use after check-in.
Paint can also be used instead
I am afraid that there are environmental safety hazards in the paint. The effect of the paint is single and not beautiful enough. There are also many alternative wall materials for the paint to choose from. Wallpaper is the most common one. In addition to beautiful patterns and strong decorative features, it also has functions such as moisture-proof and negative oxygen ions, which can reduce indoor air pollution to a certain extent. However, when choosing wallpapers, be careful to choose environmentally friendly, natural glue, because glue is the biggest source of wallpaper pollution. In addition, there are wall coverings that can be ironed on the wall by high temperature, and diatom mud wall materials that can absorb harmful gases, which are the pioneers of the current environmentally friendly wall materials.
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