Solid wood must have no formaldehyde? How much is the formaldehyde in the composite sheet?

Solid wood must have no formaldehyde? How much is the formaldehyde in the composite sheet? The answer to both is: no.

Of course, from the production process, composite sheets are indeed more prone to formaldehyde than solid wood.

Solid wood furniture

First look at solid wood furniture. Even if it is made of solid wood furniture made of whole piece of wood, it will contain a certain amount of formaldehyde.

Formaldehyde comes from two places:

First, the wood itself, when chemically treated, may be treated with a high formaldehyde content if it is not a large manufacturer.

The second is the layer of paint on the solid wood furniture. The quality is good, the natural formaldehyde content is low; the quality is second, the formaldehyde content is difficult to say. And low-quality paint will also contain benzene, which is also harmful to humans.

So if you want to buy solid wood furniture, try to buy a big brand. Whether it is wood material processing or paint, it is more reliable.

However, in general, the formaldehyde content of solid wood furniture can be controlled within the safety line compared to non-solid wood.

Composite sheet

The process of making composite sheets is naturally determined – it is indeed easier than formaldehyde for formaldehyde.

Why? Because it requires a lot of glue, put together pieces of wood chips / foam / board / strips! So it is not difficult to understand that the main culprit of formaldehyde in composite sheets is glue.

The commonly used adhesives in composite sheets are urea-formaldehyde resin, phenolic resin, melamine formaldehyde resin, MDI (isocyanate glue ) , and sometimes other. How to judge whether there is formaldehyde in the glue? A simple and rude approach (of course only in general), see if there is an "aldehyde". Therefore, urea-formaldehyde resin, phenolic resin, melamine-formaldehyde resin all contain formaldehyde, and MDI is formaldehyde-free, so many composite sheets using MDI , such as fragrant board, can be called "zero formaldehyde".

But in fact, there is no plate with zero formaldehyde in the market, just the amount of it, don't be fooled by the gimmicks of some merchants.

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