Anti-Caking Agent Powder for NPK & Granular Fertilizers | High-Performance Free-Flow Coating for Hot & Humid Climates
Product Description
This anti-caking powder is a specialized surface-treatment agent for granular fertilizers. It functions by forming a thin, hydrophobic film over fertilizer granules, which blocks moisture ingress, inhibits crystal bridging between particles, and prevents the formation of salt bridges that cause caking during storage and transport. The micro-layer coating also improves flowability, making bagging, spreading, and field application smoother and more efficient.
Unlike liquid anti-caking agents, this powder form is easy to apply via spraying and provides a dry, non-sticky finish. It is particularly recommended for fertilizer manufacturers in high-humidity regions where caking problems are most severe.
3.2 Composition / Technical Specifications
| Item | Specification |
|---|---|
| Appearance | White fine powder (or custom color) |
| Odor | No irritating odor |
| Moisture Content | ≤ 0.5% |
| Fineness | 500–600 mesh |
| Chemical Nature | Inert inorganic salts |
| Water Affinity | Strong water repellency |
| Packaging | Woven bag, 25 kg/bag |
| Shelf Life | 3 years (stored in cool, dry place, away from direct sunlight) |
Composition:
| Component | CAS No. | EC No. | Typical Content (Mass %) |
|---|---|---|---|
| Silicon Dioxide | 14808-60-7 | 238-878-4 | ~79% |
| Calcium Carbonate | 471-34-1 | 207-439-9 | ~15% |
| Palm Oil | 8002-75-3 | 232-316-1 | ~5% |
| Pigment Yellow (optional) | 5468-75-7 | 226-789-3 | ~1% |
Physical & Chemical Properties:
| Property | Value |
|---|---|
| Appearance | Yellow powder (or white, custom) |
| Solubility | Insoluble in water |
| Flammability | Not flammable |
| Chemical Stability | Stable under proper storage |
| Hazardous Decomposition | None under normal conditions |
Safety Summary:
- Inhalation: May cause coughing; use in well-ventilated areas.
- Ingestion: Accidental ingestion may be harmful; do not induce vomiting.
- Skin Contact: May cause redness; wash with soap and water.
- Eye Contact: May cause redness and pain; rinse with plenty of water.
- First Aid: Move to fresh air, rinse affected areas, consult a physician if discomfort persists.
Usage Instructions
Recommended Dosage:
| Season | Dosage (kg/ton fertilizer) |
|---|---|
| Winter | 3–4 kg/ton |
| Summer | 3.5–5.5 kg/ton |
Adjust dosage based on actual production conditions, fertilizer type, and ambient humidity.
Application Method:
- Spray coating: Apply the powder evenly onto the surface of fertilizer granules via spraying equipment.
- Ensure uniform coverage: The powder should fully encapsulate each granule for optimal anti-caking performance.
- For coloring purposes: When used as a coloring agent, combine with a matching inner coloring dye and anti-caking oil for the best color fixation and anti-caking results.
- Storage: Store in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials. Keep containers tightly closed.
Compatibility: Suitable for compound fertilizers, blended fertilizers, MAP, DAP, urea-based, sulfur-based, and nitro-based compound fertilizers.
Why Choose Our Anti-Caking Agent Powder?
- ✔ Proven in hot & humid climates: Specifically designed for tropical and subtropical regions where fertilizer caking is most severe.
- ✔ Dual-function capability: Anti-caking + coloring in one product, reducing the need for separate color-coating steps.
- ✔ Chemically inert & safe: Does not react with fertilizer nutrients, safe for soil and crops.
- ✔ Fine particle size: 500–600 mesh ensures uniform coating and efficient coverage.
- ✔ Long shelf life: 3-year stability under proper storage conditions.
- ✔ Customizable: Available in white or custom colors to match brand and market requirements.
- ✔ Quality assurance: Manufactured under ISO-compliant processes with full SDS documentation.
