One. Advantages of Shell Powder Coatings
1、Absorbs and decomposes formaldehyde.
Due to the primary component of seashell powder being calcium carbonate, which contains small amounts of calcium oxide, calcium hydroxide, and other calcium compounds, and its inherent porous, fibrous, double-helix structure, it possesses genuine adsorption and formaldehyde-decomposing properties. Furthermore, it effectively removes harmful gases such as benzene, TVOC, and ammonia from the air.
2、Air purification
The finely ground seashell powder, after biological activation, forms porous, fiber-like, double-helix structures, effectively removing airborne pollutants such as formaldehyde, benzene, and ammonia, as well as odors caused by pets, smoking, and waste. This helps to purify indoor air.
3. Eliminate unpleasant odors functionality
Calcium compounds are commonly used as deodorizers in everyday life. Therefore, seashell powder can effectively eliminate odors caused by smoke, patients, pets, mold, and other indoor smells. In particular, it can effectively absorb carbon monoxide and floating dust particles released by smoke indoors.
4、 Antibacterial and antimicrobial properties
The film made from activated seashell powder exhibits strong antibacterial and antimicrobial properties against E. coli, as well as significant effects against Salmonella and Serratia marcescens. It not only possesses high-performance antibacterial properties but also provides protection against spoilage and lice.
5、Anti-static performance
Shell powder-based biological coating utilizes natural, finely structured shell material processed with biological activation technology as its raw material. Its composition is 100% calcium, which provides excellent anti-static properties.
6. Adjusting Air Humidity: Unique "water breathing" function
The seashell powder, after being treated with biological activation technology, possesses a high-strength, porous structure, resulting in excellent water permeability. This allows the wall to maintain a breathable environment, preventing condensation in low-pressure, high-humidity conditions while gradually releasing moisture from within the wall in dry conditions. Consequently, its breathable property regulates indoor humidity, preventing condensation and the growth of microorganisms, earning it the reputation of being a "breathable" coating.
7、Fire resistance and flame retardancy
Shell powder-based biological coatings are composed of inorganic materials, making them non-combustible. In the event of a fire, the shell powder will only melt, without producing any harmful gases or smoke that could pose a risk to people.
8、Anti-glare
Shell powder uses inorganic mineral pigments for coloring, resulting in soft and natural colors. When living in a room with shell powder-coated walls, the walls reflect light naturally and gently, reducing visual fatigue and effectively protecting your and your family's eyesight, especially for children. Furthermore, the shell powder's color is long-lasting, utilizing high-temperature coloring technology, preventing fading. The walls remain like new for a long time, increasing the lifespan of the walls and reducing the frequency of wall decoration, thus saving costs for the living space.
Two. Disadvantages of Shell Powder Coatings

1、Natural color
Shell powder paints commonly use inorganic pigments. Compared to organic pigments, the colors achieved with inorganic pigments appear more natural and rustic. However, the range of color choices available for interior design is relatively limited.
2、Wall surface is not smooth.
The texture of seashell powder paint feels rough and uneven, lacking the smooth finish of traditional paint. For those who prefer a smooth surface, seashell powder paint may not be the best choice.
3、The cost of a single coat is relatively high.
Compared to latex paints and wallpapers, the price of shell powder coatings is relatively higher. The price generally ranges from one to three hundred yuan per square meter, which requires a significant initial investment.
4、Requires high-level construction techniques.
Unlike shell powder coatings, which require higher application standards and necessitate professional, systematic training and practical coating experience, shell powder coatings can be applied by skilled professionals to create unique and aesthetically pleasing shell powder coating surfaces.
5、Not suitable for application in bathrooms or kitchens.
Shell powder coatings exhibit excellent breathability and moisture-regulating properties, absorbing excess moisture from the indoor environment and releasing it when the environment is dry, maintaining a comfortable humidity level. However, shell powder coatings are not suitable for use in areas with high humidity and moisture, such as bathrooms and kitchens, where ceramic tiles or other materials are more appropriate.
Three. Tips for selecting seashell powder coatings
1、Brand identification
Due to the uneven quality of the current home renovation coating market, it is advisable to choose well-known brands for shell powder wall coating selection to ensure safe use. When selecting shell powder coating, carefully review the product's quality inspection report, and ensure that all required markings and labels are clearly displayed on the packaging. For imported coatings, choose products with Chinese labels and instructions.
2、Odor and Packaging
Non-environmentally friendly paints often have pungent odors that can cause nausea and dizziness. When purchasing seashell powder-based paints, if you detect irritating odors, exercise caution. Avoid purchasing paints with added fragrances. After purchasing seashell powder-based paints, be sure to keep the purchase receipt. Additionally, check the seams of the metal buckets for signs of rust or leakage.
3、On-site testing
If significant layering occurs when using seashell powder paint, it indicates poor quality. When selecting, request samples and test them by gently stirring with a stick. If the paint remains on the stick for an extended period and applies evenly, it indicates good quality. If a small amount can be easily removed with water after drying, it's a good sign. The finer the texture, the better.