In the process of continuous upgrading of coatings, inks and digital printing media towards higher quality and functionalization, multi-specification silica products with functions of opacifying, anti-sagging, thickening and ink absorption are becoming the key materials for precisely regulating the surface effect and printing quality of coatings. The product series of silica for coating use launched by our company includes four models: FINE SIL 516, FINE SIL 300, FINE SIL 300A and FINE SIL 300B. With their differentiated processing techniques and performance designs, these products have demonstrated significant industrial application value in fields such as furniture paint, industrial coatings, leather finishing and inkjet printing consumables, providing systematic silica product options for customers in various industries.


I. Product Series Specifications and Core Physical and Chemical Properties


This product series covers four models, each with its own focus. FINE SIL 516 is treated precipitated silica with a dry base silica content of no less than 98%, a heat reduction of 4% to 6%, a pH value of 6.5 to 7.5, a specific surface area of 200 square meters per gram, 3% to 5% moisture, an average particle size of 3 micrometers, an oil absorption value of 280 grams per 100 grams, and is packaged in 5 kilograms per bag. FINE SIL 300 is made by gelation process, with a specific surface area of no less than 300 square meters per gram, an average particle size of 3 micrometers, an oil absorption value of no less than 320 grams per 100 grams, and is packaged in 10 kilograms per bag. FINE SIL 300A has a specific surface area of no less than 300 square meters per gram, an average particle size of 3.5 micrometers, an oil absorption value of no less than 30 grams per 100 grams, and is packaged in 10 kilograms per bag. FINE SIL 300B has a specific surface area of no less than 250 square meters per gram, an average particle size of 3 micrometers, an oil absorption value of no less than 260 grams per 100 grams, and is packaged in 10 kilograms per bag.


II. Core Performance Advantages and Application Positioning of Each Model


FINE SIL 516 has strong adsorption capacity and good dispersion, and is mainly used for adsorption, anti-sagging and thickening in the fields of electrofoil, coatings and inks. It can replace the expensive siliceous earth used in the production of primer in paints and coatings, reducing raw material costs.


FINE SIL 300 has good hardness, strong dispersion and good refractive index, and is used as a coating opacifier in paints and coatings. It has a good blurring effect and can be used to make various matte coatings such as semi-matte, soft light, full matte and even matte coatings.


FINE SIL 300A is designed for furniture paint, coatings, leather, artificial leather, plastic surface layers, etc. It has good hardness, making the paint film have good wear resistance and scratch resistance, strong dispersion for good suspension, and no hard precipitation during storage, with good refractive index, resulting in good transparency of the paint film and no fogging.


FINE SIL 300B is a silica specifically for inkjet printing consumables and photo paper, with good inkjet printing medium properties, large pore size, good dispersion and suspension, strong ink absorption performance, high color saturation, fast curing speed, thereby improving the printing quality of the product and the production efficiency of the manufacturer.


III. General Product Characteristics


This product series has good opacifying effect and can be used to make various matte coatings; good dispersion, can be dispersed to below 15 micrometers with high-speed stirring; the formed paint film has good transparency, no fogging; has no impact on the drying, storage and curing of the coating; the paint film is smooth, fine, wear-resistant, and has good scratch resistance and impact resistance; has no effect on the durability and weather resistance of the coating; has good anti-sagging property, no hard precipitation during storage; the opacifying powder is evenly arranged and has a good feel.


IV. Wide Application Areas


This product series can play an important role in the following key application areas, specifically including:


1. Furniture paint and wood coatings. FINE SIL 300 and 300A are suitable for controlling the gloss and surface effect of various wood coatings, providing a fine and uniform matte effect and a good hand feel.


II. Industrial coatings and anti-corrosion coatings. FINE SIL 516 is suitable for anti-settling and thickening of primer, replacing the more expensive silica dust. The 300 series is suitable for gloss control and surface performance optimization of topcoat.


III. Leather and synthetic leather coating. FINE SIL 300A is suitable for gloss control of leather and artificial leather surface, giving the coating wear resistance, scratch resistance and good transparency.


IV. Printing consumables and digital printing media. FINE SIL 300B is specifically used for RC paper and inkjet printing media, improving ink absorption speed, color saturation and curing efficiency.


V. Product usage suggestions


The leveling agent must be fully dispersed in the coating to fully exert its effect. This series of products can be conveniently dispersed in the coating using a standard high-speed disperser. When using, users must pay attention to factors such as blade diameter, container size, height of the coating slurry, and the rotational speed of the impeller, as these are all key factors affecting the dispersion effect.


VI. Quality assurance and industrial chain value


This series of products has established a strict quality control system during production. Key indicators such as silica content, heat loss reduction, pH value, specific surface area, moisture content, average particle size and oil absorption value are all subject to full-process testing to ensure consistency and reliability between batches. As the coatings, inks and digital printing industries continue to develop towards higher quality and functionality, the demand for differentiated and high-performance silica products is steadily increasing. This series of products, with its series design covering adsorption anti-settling, high gloss control, wear-resistant transparency and ink absorption for inkjet printing, precise performance parameter control and mature dispersion process adaptability, is becoming an important solution for customers in various fields in the selection of silica materials for coatings and printing media, providing strong raw material support for promoting product quality improvement and process innovation in related industries.