Composite flooring and multi-layer solid wood flooring require the use of adhesives in the production process, with formaldehyde being one of the main components of the adhesive. Solid wood flooring does not require the use of adhesives in the production process. So, many consumers will think that composite flooring contains formaldehyde and is not environmentally friendly, and only solid wood flooring without formaldehyde is environmentally friendly. So is this really the case? In fact, it is not just solid wood flooring that is environmentally friendly. As long as the flooring meets national standards, it is harmless to the human body.
Firstly, in terms of the environmental friendliness of solid wood flooring itself, whether the paint used for solid wood flooring is environmentally friendly determines whether the product is environmentally friendly.
Secondly, if the adhesive used for multi-layer solid wood flooring is an environmentally friendly product, the formaldehyde release is very low, and the environmental performance can be fully met.
Thirdly, the content and release of formaldehyde are not the same concept. If the floor substrate contains formaldehyde, but the release amount is small, it will not have an impact on the human body; If the substrate used has good sealing performance, some composite flooring may release less formaldehyde than natural wood. China implements mandatory environmental standards for formaldehyde emissions from flooring (E1 level standard: formaldehyde emissions≤ 1.5mg\/L), while the processing technology of reinforced flooring itself is sealed on both sides, and the four grooves are tightly connected during installation, which can expose less than 1% of formaldehyde emissions.
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In addition, the lower the formaldehyde content in the floor, the better. If the formaldehyde content in the substrate is too low, it will also cause a decrease in floor strength and an increase in water absorption and expansion rate. As long as the formaldehyde release in the floor meets national standards, it is sufficient. In fact, formaldehyde is not so scary, and there is also a small amount of formaldehyde in food. For example, beer has a formaldehyde content of 2mg\/L, and fruits also contain a certain amount of formaldehyde.