Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
Toothpaste Abrasive Silica
Classification :
Toothpaste Silicon Dioxide
Keywords :
Toothpaste Abrasive Silica
PRODUCT DETAILS
1. Product Advantages
Our product is silica specially developed as an abrasive for toothpaste, serving as the core functional raw material for cleaning in toothpaste formulations. It strictly complies with GB/T 32673-2016, FDA and FCC standards. Optimized for abrasive cleaning performance, it features narrow particle size distribution and uniform particle morphology, with customizable RDA values ranging from 80 to 200. It effectively removes dental plaque, food residues, as well as extrinsic stains including tea stains, tobacco stains and coffee stains. Meanwhile, its Mohs hardness is controlled at 2.5–3.0, lower than that of tooth enamel, avoiding excessive abrasion to enamel.
With moderate specific surface area and high cleaning efficiency, it shows excellent compatibility with active ingredients such as fluorides and antibacterial agents, synergistically enhancing anti-cavity and antibacterial effects. It is the preferred abrasive raw material for various functional toothpastes.
2. Product Specifications
Parameter | Details |
Product Name | Toothpaste Abrasive Silica |
Appearance | Uniform white powder |
Particle Size Range | 8–18 μm (special particle size for abrasive grade) |
SiO₂ Content | ≥98.5% |
pH Value (5% suspension) | 6.5–8.0 |
Volatile Matter at 105℃ | ≤9.0% |
Total Salts (Na₂SO₄+NaCl) | ≤1.5% |
Oil Absorption Value | 80–150 g/100g |
Typical Dosage | 15%–25% |
RDA Value | 80–200 (customized by grades) |
Compliance Standards | GB/T 32673, USP, FCC, FDA |
Packaging | 10/15/20 kg valve paper bags |
Lead Time | 3–7 days for in-stock items |
Sample Supply | Free samples available |
Production Capacity | Intelligent production line with annual capacity of ten thousand tons |
3. Application Scenarios
As a core abrasive, it is widely used in all types of toothpaste, especially suitable for formulations requiring strong cleaning power, such as whitening toothpaste, stain-removing toothpaste, anti-cavity toothpaste, herbal toothpaste and special toothpaste for smokers.
- For whitening toothpaste: Effectively eliminate extrinsic stains including tea, coffee and tobacco stains, and restore the natural whiteness of teeth via mild polishing.
- For anti-cavity toothpaste: Removes dental plaque without interfering with the remineralization of fluorides to strengthen anti-cavity performance.
- For smokers’ toothpaste: Grades with high RDA values deliver deep cleaning to remove heavy tobacco and tea stains.
- For children’s toothpaste: Low-RDA grades (80–100) balance cleaning performance and enamel protection for kids.
4. Manufacturer Advantages
Zhongqi Guangdong Silicon Materials Co., Ltd. is a national high-tech enterprise and provincial specialized, sophisticated, distinctive and innovative enterprise. With over 20 years of experience in toothpaste abrasive silica, we are one of China’s major suppliers of toothpaste abrasive silica.
We own dedicated production lines for abrasives and an independent RDA testing laboratory to realize precise grading of abrasion values, with batch-to-batch RDA deviation ≤10. Equipped with professional testing instruments including laser particle size analyzers and abrasion testers, we guarantee stable particle morphology and cleaning performance. A total of 26 full inspection procedures are implemented to ensure consistent product quality across batches.
Our large-scale production capacity of ten thousand tons can meet stable supply demands of major toothpaste manufacturers. Our products are supplied to dozens of well-known domestic toothpaste brands and exported to Southeast Asia, the Middle East, Europe, America and other regions.
5. Packaging & Delivery
• Standard Packaging: 10/15/20 kg valve paper bags with inner PE liner;
• Moisture-proof Design: Sealed composite valve opening plus outer waterproof package to prevent moisture absorption and caking, stabilizing abrasive performance;
• Storage & Transportation: Store in cool and dry conditions; shelf life: 24 months. Non-dangerous goods, available for multimodal transport by sea, land and air;
• Marking Specification: Each package is labeled with abrasive grade, RDA range and applicable standards. Custom shipping marks and grading labels are acceptable upon customer request.
6. FAQs
Q: Does a higher RDA value mean better cleaning performance?
A: Higher RDA corresponds to stronger abrasive cleaning power, yet higher RDA is not always better. For daily toothpaste, RDA is recommended below 150. Long-term use of products with excessively high RDA may lead to enamel abrasion and dentin hypersensitivity. We provide graded products covering 80–200 RDA, and suitable specifications can be selected according to target consumer groups and product positioning.
Q: Can abrasive silica be mixed with thickening silica?
A: Yes. In practical toothpaste formulas, abrasive silica is commonly used together with thickening silica. Abrasive silica undertakes cleaning functions, while thickening silica shapes and stabilizes the paste. Our technical team can offer optimal mixing ratios based on formulation requirements.
Q: How to verify the cleaning performance of abrasives?
A: Cleaning performance can be verified via RDA testing, stain removal tests, plaque removal tests and other methods. Our laboratory provides relevant testing support to assist customers with formulation validation.
7. Certifications & Honors
- FSSC22000
- ISO22000:2018
- ISO9001:2015
- SHC HALAL
- OU KOSHER
- FDA Registration
- Production License for Oral Care Raw Materials
- National High-tech Enterprise
- Guangzhou Specialized, Sophisticated, Distinctive and Innovative Enterprise
- 17 Patents Granted by China National Intellectual Property Administration
Packaging and Shipping
Zhongqi (Guangdong) Silicon Materials Co., Ltd., with over 20 years of experience in the food-grade silica field, is a national high-tech enterprise and a Guangdong Province specialized and innovative enterprise. Trusted by numerous international food giants, it is a leader in high-end food-grade silica. Shandong Zhonglian Chemical Co., Ltd. is Zhongqi's sole officially authorized overseas sales subsidiary.
laboratory
The company has established a world-leading R&D and intelligent manufacturing system, built GMP-standardized workshops, constructed 10,000-ton intelligent production lines, established a national-level testing center equipped with cutting-edge international equipment, and built its own high-standard microbiological testing laboratory. From raw material screening to finished product delivery, the entire process strictly adheres to domestic and international food safety management certifications, achieving simultaneous leadership in both "quality" and "quantity."
Customer Visit
We are committed to silicon dioxide for 20 years, our product is well know in the world and cooperate with some Fortune 500 companies, such as the Nestlé，Yihai Kerry，COFCO，China Resources，Budweiser，Symrise, and so on.
HONOR
In 2021, the company was listed on the Guangdong Stock Exchange, marking the beginning of its international expansion. Today, Zhongqi Silicon Industry, with an open vision, empowers the global food industry's safety system with the power of "Made in China." Going forward, the company will continue to focus on molecular-level safety to ensure peace of mind and, with a global perspective, to create a purer quality of life. Because true strength lies in making invisible protections visible to the world.
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Jinan City, Shandong Province,China
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Guangzhou City, Guangdong Province
