National Manufacturing Single Champion Product. Halogen-free, water-soluble, non-toxic — with anti-dripping and smoke suppression in a single additive. Available as liquid or solid powder.
Our Silicon-Based Flame Retardant is the world's top-selling silicon-based FR by market share — a designation earned through 71 national patents, over a decade of continuous R&D, and successful deployment across 30+ countries. It is the defining product of Shandong Zhongzhi Chemical Technology and holds the distinction of China's "National Manufacturing Single Champion Product."
Unlike halogenated flame retardants that release toxic HBr or HCl gases during combustion, our silicon-based system achieves flame retardancy through a fundamentally clean chemistry: silicon-oxygen bonds form a protective char layer that blocks heat transfer and oxygen supply. The result is a high-LOI, anti-dripping, low-smoke FR that meets the most demanding global regulatory standards.
The product is available in two forms — a water-soluble liquid for textile finishing and liquid coating applications, and a solid powder for polymer compounding and dry-process applications. Both forms deliver equivalent FR performance and share the same core silicon chemistry.
| Parameter | Liquid Form | Solid Powder Form |
|---|---|---|
| Appearance | Colorless to pale yellow transparent liquid | White to off-white powder |
| SiO₂ Content | > 15% | > 15% |
| Heavy Metals | ≤ 5 mg/kg | ≤ 5 mg/kg |
| Polybrominated Biphenyls | ≤ 5 mg/kg | ≤ 5 mg/kg |
| Limiting Oxygen Index (LOI) | ≥ 29% (textile substrate) | ≥ 29% (textile substrate) |
| Anti-Dripping | Yes (UL94 anti-drip rated) | Yes (UL94 anti-drip rated) |
| Smoke Suppression | Significantly reduced smoke density | Significantly reduced smoke density |
| Solubility | Fully water-soluble | Dispersible in water-based systems |
| pH (1% solution) | Alkaline | Alkaline |
| Thermal Stability | Stable to 200°C | Stable to 300°C+ |
| Halogen Content | None detected | None detected |
| Compliance | RoHS, REACH, EN 13501, NFPA 701 compatible | RoHS, REACH, UL94 compatible |
| Packaging | 200 L drum / IBC tote | 25 kg woven bag / kraft bag |
| Shelf Life | 12 months (sealed, cool, dry) | 24 months (sealed, dry) |
Designed for textile finishing (pad-dry-cure), FR coating formulations, and paper treatment. Easy spray or exhaust application. Ideal for cotton, linen, polyester-cotton blends. Compatible with water-based binder systems at pH 6–10.
Designed for polymer compounding in PP, PE, PA, PVC, and engineering plastics. Directly blendable on twin-screw extruder. Used in wire & cable insulation, electronics housings, automotive components, and construction materials.
Our silicon-based FR is trusted across demanding end-use industries where halogen-free compliance and fire safety performance are both required:
We ship free samples (liquid or powder) to qualified industrial buyers in the US, Canada, and EU. No commitment required — just tell us your application.