1. Product Advantages

Our precipitated silica is specially developed as a functional raw material for toothpaste production. It is synthesized via a professional precipitation reaction process using sodium silicate and acid raw materials. Strictly compliant with GB/T 32673-2016, FDA and FCC standards, it is the most widely applied silica type in the global toothpaste industry.

The product features an irregular porous structure with a particle size ranging from 5μm to 20μm and a specific surface area of 100-300m²/g. It boasts a silica content of ≥98%, extremely low heavy metal residues, stable chemical properties, and excellent compatibility with all conventional ingredients in toothpaste formulations.

We provide two mainstream grades: hydrophilic type and hydrophobic type to adapt to diverse toothpaste systems. The hydrophilic grade delivers outstanding thickening and dispersing performance. The hydrophobic grade effectively improves the moisture resistance and storage stability of toothpaste paste, preventing hardening and agglomeration during long-term storage. Meanwhile, the RDA value can be precisely adjusted within 50-200, balancing mild cleaning performance and tooth protection, making it suitable for mass production of all types of toothpaste.

2. Product Specifications

3. Application Scenarios

Tailored for large-scale production of full-category toothpaste, our precipitated silica is widely applicable to basic cleaning toothpaste, whitening toothpaste, Chinese herbal toothpaste, children’s toothpaste, transparent toothpaste and other mainstream products.

The hydrophilic precipitated silica features superior thickening capacity, which effectively increases toothpaste viscosity and stabilizes the paste system. It can also adsorb fluoride and Chinese herbal active ingredients to achieve slow release of active substances and improve product efficacy.

The hydrophobic grade enhances the moisture resistance of toothpaste paste, avoids moisture loss, hardening and deterioration during storage, and extends the product shelf life. By adjusting particle size and structural parameters, our products can meet differentiated demands for low-abrasion children’s toothpaste and high-cleaning whitening toothpaste. As a cost-effective abrasive and thickener, it is a universal core raw material for modern toothpaste formulations.

4. Factory Strength

Zhongqi Guangdong Silicon Materials Co., Ltd. is a national high-tech enterprise and provincial specialized & sophisticated enterprise. With more than 20 years of R&D and production experience in precipitated silica, we are a leading domestic supplier of toothpaste-grade precipitated silica.

We are equipped with high-precision testing equipment including laser particle size analyzers, specific surface area testers and professional RDA testing instruments, enabling accurate control of particle size, pore structure and friction value of silica products. A strict 26-item full inspection process from raw materials to finished products ensures stable batch quality.

Our 10,000-ton fully automated continuous production lines guarantee stable output and controlled production costs, meeting the bulk supply demands of large toothpaste manufacturers. Our products serve hundreds of domestic toothpaste brands and are exported to global markets.

5. Packaging & Shipping

Standard Packaging: 10/15/20kg woven bags or valve paper bags, customized packaging specifications are acceptable.

Moisture-Proof Design: Double-layer protection with PE inner film bag and outer woven/composite valve bag, ensuring stable powder performance.

Storage & Transportation: Store in cool and dry environment with a shelf life of 24 months. Classified as non-dangerous goods, supporting global sea and air transportation.

Standard Marking: Each package is printed with official information including oral care raw material attributes and executive standards. Custom shipping marks are available upon customer requests.

6. FAQ

Q1: What is the difference between precipitated silica and fumed silica for toothpaste?

A1: Precipitated silica is produced by wet precipitation process, with a particle size of 5-20μm, moderate specific surface area and high cost performance, which is the mainstream choice for the toothpaste industry. Fumed silica is manufactured by gas-phase process, featuring finer particle size, larger specific surface area and higher cost, mainly used for high-end thickening scenarios. Precipitated silica can fully meet the friction and thickening requirements of toothpaste production with better cost efficiency.

Q2: How to choose between hydrophilic and hydrophobic precipitated silica?

A2: Hydrophilic silica is suitable for conventional water-based toothpaste formulas with excellent thickening and dispersing properties. Hydrophobic silica is ideal for toothpaste products requiring high moisture resistance and anti-hardening performance to improve long-term storage stability. Our technical team can provide professional personalized selection guidance according to your specific formulas.

Q3: Does your product meet international heavy metal limit standards?

A3: Yes. Our products strictly control heavy metal residues (Pb ≤2mg/kg, As ≤2ppm), fully complying with GB/T 32673, FDA, FCC and other domestic and international oral care raw material standards. Safe for toothpaste production and global export sales.

7. Qualifications & Honors

• FSSC22000 Food Safety System Certification
• ISO22000:2018 Food Safety Management System Certification
• ISO9001:2015 Quality Management System Certification
• SHC HALAL Certification
• OU KOSHER Certification
• FDA Registration & Compliance
• Oral Care Raw Material Production License
• National High-Tech Enterprise
• Guangdong Provincial Specialized & Sophisticated Enterprise
• 17 National Patents for Independent Intellectual Property