Polyvinyl alcohol 107 glue is an organic polymer. While it gains strength during polymerization as moisture evaporates, it also shrinks simultaneously, creating cracks and causing leaks. Its properties quickly dissipate shortly after application.
1. It cannot withstand freeze-thaw cycles, leading to peeling and flaking.
2. Application is difficult, and cleaning is also challenging.
3. It is easily affected by human factors, making it difficult to guarantee application quality.
4. It has poor weather resistance and durability, and fails quickly.
Furthermore, 107 glue itself is made from polyvinyl alcohol and formaldehyde, containing a large amount of harmful components that endanger health.
Formaldehyde exceeding the standard has three main serious hazards:
1. Sensitization: Direct skin contact with formaldehyde can cause allergic dermatitis, pigmentation, and necrosis; inhalation of high concentrations of formaldehyde can induce bronchial asthma.
2. Irritation: The main hazard of formaldehyde is its irritation to the skin and mucous membranes. Formaldehyde is a protoplasmic poison that can bind to proteins. Inhalation of high concentrations can cause severe respiratory irritation and edema, eye irritation, and headaches.
3. Mutagenic Effects: High concentrations of formaldehyde are also genotoxic. In laboratory animals, high concentrations can cause nasopharyngeal tumors.
107 glue is priced between 10-30 yuan per bucket (bag) in the market. This product is a low-end product among auxiliary building materials. Due to its low price and consumers' low environmental awareness, glue produced by various manufacturers is still widely sold in the market. Formaldehyde is a very scary word. Formaldehyde is not easily volatilized after decoration; it can remain for as long as 20 years, or even within a year. Imagine living in a place shrouded in toxic gas for the next few decades, and the long-term harm it will cause to our health—how terrifying is that!
Currently, major brand tile adhesives on the market are manufactured in strict accordance with the national standard "Limits of Hazardous Substances in Indoor Decoration and Renovation Materials," making them green and environmentally friendly materials that are formaldehyde-free and benzene-free, ensuring absolute peace of mind when using them.
Customers (homeowners) are advised to personally select genuine tile adhesives from major brands, or to test them using the following methods before purchasing in bulk!
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