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Used diatom mud formaldehyde is exceeded? lie?
With the rise in living standards, people's consumption habits have evolved significantly. Environmental protection and low carbon living have become key trends in modern home renovation. Among these, a natural wall coating called diatom mud has gained popularity, especially among younger generations.
Diatom mud originated in Japan and was introduced to the Chinese market in 2003. It is marketed as an eco-friendly material designed to control indoor pollution. Made from ancient diatomite, it has strong adsorption and ion exchange properties, offering features like odor removal, fire resistance, humidity regulation, formaldehyde decomposition, sterilization, insulation, energy efficiency, and noise reduction. These benefits have made it highly sought after.
However, the market for diatom mud is mixed. Prices vary widely, and it's hard for consumers to distinguish genuine products from fake ones. Many are skeptical—wondering if "green paint" is just a marketing illusion.
Chen Xinwen, a homeowner who once used diatom mud during his renovation, shared his experience. He chose it for its environmental benefits, despite its high cost, which was much more than traditional wallpaper. But soon after, he discovered that the formaldehyde levels were dangerously high. When he contacted the seller, they claimed the diatom mud itself was free of formaldehyde, but the adhesive used during installation contained it. This led him to remove all the diatom mud and replace it with latex paint.
Curious about this claim, the reporter visited several diatom mud stores in Hangzhou. Some sellers insisted that real diatom mud doesn’t require glue, while others suggested Chen might have bought a counterfeit product.
At one store on Gudun Road, a salesperson confidently stated, “That must be fake! Real diatom mud doesn’t need glue. It’s like cement—it becomes sticky when water is added.†Another store confirmed this, adding that only a small amount of photocatalysts and animal-based gelatin is used to enhance performance.
However, fake diatom mud often uses chemical binders, which block its natural structure and reduce its ability to absorb pollutants or regulate humidity. In some cases, these products can even release harmful gases over time, making them worse than traditional paints.
The market is full of confusion. Brands claim to offer the best quality, but consumers struggle to tell the difference. Some products are priced up to four times higher than others, with some selling at extremely low prices. Despite claims of being “breathable†and “pollution-free,†few provide real proof of their environmental benefits.
Many brands also disagree on how diatom mud should be applied. Some add photocatalysts to help break down formaldehyde, while others claim pure diatom mud naturally releases negative ions without chemicals. Others argue that chemical additives can clog the pores and cause secondary pollution.
Even more confusing is the debate over whether diatom mud can be reused. Some brands say that if it can be scraped off and reused, it’s real. Others insist that true diatom mud cannot be reused because it degrades when wet, leading to bacterial growth and bad odors.
As the market continues to grow, so do consumer concerns. With no clear standards or reliable testing, many remain hesitant to choose diatom mud. The question remains: is it truly eco-friendly, or just another greenwashing tactic?