Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
High Viscosity Thickening Silica
Classification :
Toothpaste Silicon Dioxide
Keywords :
High Viscosity Thickening Silica
PRODUCT DETAILS
1. Product Advantages
This is a high‑viscosity thickening‑grade silica specially developed for toothpaste. Manufactured with modified porous‑structure technology, it fully complies with GB/T 32673‑2016 and FDA oral‑ingredient standards, serving as a core raw material for thickening, thixotropy and paste stabilization in high‑end toothpaste.
Featuring an ultra‑high specific surface area and outstanding 3‑D network‑building capacity, it delivers powerful thickening performance at low dosage. It rapidly stabilizes toothpaste viscosity and resolves common industry challenges including runny paste, sagging, tube collapse, phase separation and water bleeding.
The powder has a purity of ≥98% with extremely low residual impurities and stable, inert chemical properties. It exhibits excellent compatibility with humectants, flavours, whitening and repair actives in toothpaste, without adsorbing or antagonizing active ingredients.
The thickened paste shows firm texture, smooth extrusion and shear‑thinning behaviour, combining good formability and pleasant sensory feel. It fits the formulation systems of all categories of mid‑to‑high‑end functional toothpaste.
2. Product Specification
| Item | Details |
|---|---|
| Product Name | High‑Viscosity Thickening Silica |
| Appearance | White, highly fluffy ultrafine thickening powder |
| Particle Size Range | 5‑13 μm (special for thickening applications) |
| Silica Content | ≥98% |
| pH Value | 6.6‑7.8 (optimized for paste‑stabilizing systems) |
| Loss on Drying (105 ℃) | ≤9.5% |
| Total Salts | ≤1.1% |
| Typical Dosage | 10%‑22% |
| Viscosity Adjustment | Customizable medium‑to‑high viscosity range |
| RDA Value | 60‑110 (balances thickening and basic cleaning performance) |
| Compliance Standards | GB/T 32673, USP, FCC, FDA |
| Packaging | 10 kg / 20 kg valve bags |
| Lead Time | 5‑10 days for stock items; 7‑12 days for custom specifications |
| Sample | Free samples available |
| Production Capacity | 10,000‑ton‑per‑year intelligent modified production line |
3. Application Scenarios
Primarily applied to toothpaste requiring high‑viscosity paste stabilization, including transparent gel toothpaste, gradient‑colour toothpaste, high‑active‑ingredient toothpaste, botanical‑essential‑oil toothpaste and large‑size family‑pack toothpaste.
It precisely adjusts paste viscosity and addresses rheological instability, storage‑induced phase separation and extrusion sagging under high‑low temperature conditions. It delivers firm shape and smooth extrudability. In addition, it helps lock‑in flavours and active components, extends fragrance retention, and preserves paste stability and functional efficacy over long‑term storage. It is an essential thickening & stabilizing raw material for high‑end shaped and functional toothpaste.
4. Factory Strength
Our company holds proprietary patented modification technology for high‑viscosity thickening silica, enabling precise tuning of powder pore structure and specific surface area, as well as custom viscosity parameters with minimal batch‑to‑batch viscosity deviation.
We are equipped with professional viscosity testers, specific‑surface‑area analysers and paste‑stability simulation test equipment to fully control thickening, thixotropy and stabilizing performance. A closed‑loop management system covering modification, synthesis, testing and delivery is implemented, with 26 dedicated QC procedures to ensure compatibility with complex toothpaste formulations.
Our 10,000‑ton‑level automated production line ensures stable mass supply. We also provide technical support for formulation viscosity optimization to meet customized requirements from domestic and international mid‑to‑high‑end toothpaste brands.
5. Packaging & Shipment
- Standard Packing: 10 kg / 20 kg food‑grade sealed valve bags, dust‑proof and moisture‑resistant.
- Moisture‑proof Design: Dual‑layer protection with PE inner liner plus outer waterproof woven layer, preserving powder pore structure and thickening performance.
- Storage & Transportation: Store in cool, dry and sealed conditions; avoid high‑temperature and high‑humidity environments. Shelf life: 24 months.
- Marking: Marked with thickening‑specific parameters and compliance standards; custom brand‑specific shipping marks and package labels are acceptable.
6. FAQ
Q: Will high‑viscosity thickening silica result in overly hard toothpaste and difficult extrusion?
A: No. The product features excellent thixotropy: it thickens and shapes at rest and becomes shear‑thinning upon brushing. It maintains firm paste without tube collapse while ensuring smooth extrusion and fine brushing sensory experience.
Q: Does it adsorb whitening or repair active ingredients in toothpaste?
A: No. Subject to modified passivation treatment, the product features stable and inert chemical properties. It only provides physical thickening and stabilization without adsorbing or antagonizing various active ingredients, and will not impair core toothpaste efficacy.
Q: Can viscosity parameters be customized?
A: Yes. We can tailor high‑, medium‑ and low‑viscosity grades according to customers’ toothpaste formulations and paste‑shaping requirements to match diverse product positioning.
7. Certifications & Honors
- FSSC 22000 Food Safety System Certification
- ISO 22000:2018 Food Safety Management System
- ISO 9001:2015 Quality Management System
- SHC HALAL Certification
- OU KOSHER Certification
- FDA & FCC International Compliance Certifications
- National High‑Tech Enterprise
- Specialized, Refined, Differential & Innovative Enterprise
- Patents for Specialized Thickening‑Modification R&D
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
