Ultrafine Heavy Active Calcium Carbonate 1250 Mesh - Premium Active Calcium Carbonate for Coatings and Rubber

Product Characteristics
Particle Size and Activity: With a fineness of 1250 mesh, its particle size is very fine, which can provide a large specific surface area.

After surface activation treatment, the surface of the particles is covered with active substances, which significantly improves its lipophilicity and dispersibility in organic media such as coatings and rubber.

It can be evenly dispersed in the matrix material, enhancing its combination with resins and other substances.

High Purity and Whiteness: Usually, the calcium carbonate content is not less than 97%, and the impurity content is extremely low.

It has high whiteness, generally reaching over 95%, which is beneficial for improving the hiding power, color purity, and decorative effect of coatings, and also helps to improve the color stability of rubber products.

Proper Oil Absorption Value: The oil absorption value is generally in the range of 15 - 33 g / 100 g. This oil absorption value enables it to absorb an appropriate amount of resin and additives in coatings and rubber, which helps to adjust the viscosity, fluidity, and drying properties of coatings, and also has a positive impact on the processing performance and physical properties of rubber.

Good Chemical Stability: It has excellent chemical stability, is not easily affected by general chemical substances, and can maintain stable performance in different chemical environments. This is beneficial for the long - term storage and use of coatings and rubber products and is not prone to chemical reactions that affect quality.

Functions in Coatings and Rubber

In Coatings

Improving Coating Properties: As a filler, it can increase the solid content of coatings, thereby increasing the thickness of the coating film when it is formed.

Its high hardness can significantly improve the wear - resistance of the coating, prolonging the service life of the coating. In addition, it can improve the hiding power, whiteness, gloss, and dispersion stability of coatings, especially in latex paints and putty powders. 

It can also enhance the weather - resistance of the coating film, enabling it to maintain good performance under various harsh climatic conditions, and reduce the risk of hygroscopic deformation of the coating.

Adjusting Coating Processing Performance: The 1250 - mesh ultrafine heavy active calcium carbonate has regular particle shapes and is easy to disperse in coatings, which can improve the leveling and construction performance of coatings, making them easier to brush and spray during construction, and improving work efficiency.

In Rubber

Enhancing Mechanical Properties: It can improve the hardness, tensile strength, and tear - resistance of rubber to a certain extent. The active treatment enables better combination between calcium carbonate and the rubber matrix, enhancing the internal structure of rubber and improving its resistance to deformation and damage.

Improving Processing Performance: It can improve the fluidity of rubber during processing, reduce the friction between rubber and processing equipment, and thus reduce mold wear. In addition, it can also shorten the kneading time during processing, improve production efficiency, and is beneficial for the molding and processing of rubber.

Reducing Costs: As a filler, it can replace part of the rubber, thereby reducing the amount of rubber used and effectively controlling production costs under the premise of meeting the performance requirements of rubber.

Product Advantages

Wide Range of Applications: It is suitable for various types of coatings, such as architectural coatings, industrial coatings, and functional coatings, as well as various rubber products, including tires, rubber hoses, and seals. It can meet the performance requirements of different products in different fields.

Stable Quality: With strict quality control, the physical and chemical properties of Ultrafine Heavy Active Calcium Carbonate 1250 Mesh are relatively stable.

This ensures the consistency of product performance during production, reduces product quality fluctuations caused by raw material differences, and is conducive to the large - scale production and quality control of manufacturers.

Cost - Effective: While ensuring product performance, it has a relatively reasonable price. Compared with some high - performance fillers, it has a certain price advantage, which can help manufacturers reduce production costs and improve the market competitiveness of coating and rubber products.

Application fields: mainly used in coatings, paints, sealants, plastics, rubber and daily chemical industries.

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