Diatom mud must absorb water quickly, is it good?

At present, many merchants on the market pretend to use hand-held watering cans to repeatedly spray water on the same location on the diatom mud wall to demonstrate the water-absorbing properties of the cover material. Water will indeed be quickly absorbed during the spraying process, but here is a basic Common sense, this can only show that the product is a material with good permeability. If you spray water on a low-quality latex paint wall or a putty powder-based wall, it will absorb water quickly, but this cannot be called adsorption, it can only be called rapid penetration. In this case Next, can the wall base made of gypsum board or wood board still withstand it?
The speed of diatom mud absorbing water is not necessarily related to whether it will absorb formaldehyde. The quality of diatom mud mainly depends on Its ability to adsorb and decompose harmful gases such as formaldehyde and methanol. To give a simple analogy, if you pour the same water on a big stone, it will definitely absorb very little, but if you grind the stone into powder It definitely absorbs water very quickly, and its molecular structure does not change. Some diatom mud absorbs water quickly and some diatom mud absorbs water slowly, but their surface morphology is different. The molecular structure remains unchanged, and the adsorption of formaldehyde, methanol and other harmful substances The gas is determined by the molecular structure of diatom mud.
Natural diatom mud walls rely on natural adsorption rather than rapid penetration. Adsorption is a very microscopic physical process, and the moisture it absorbs is stored in the material structure. It will automatically release when the external humidity needs to be adjusted, without any impact on the base layer of the wall. In the same way, the process of ion exchange by the harmful gases is slow, and this kind of permeable material cannot truly purify the air.