Appearance:GRANULE/BEAD
Packaging：25KG/BAG
High-purity aluminum stearate serves as a multi-functional industrial additive across diverse high-value sectors, with tailored performance benefits for each industry:
Fertilizer Manufacturing
As a premium anti-caking agent for compound fertilizers, NPK blends, and urea granules, it forms a hydrophobic coating on fertilizer particles to prevent clumping during long-term storage and transportation. Ideal for fertilizer producers targeting markets with high humidity, it improves product flowability and mechanized application efficiency.
Plastics & Rubber Processing
Acts as a lubricant and mold release agent for PVC, PE, PP, and rubber products. Reduces friction between resin particles and processing machinery, enhances mold release efficiency, and improves the surface finish of plastic films, pipes, and rubber seals. Its high thermal stability makes it suitable for high-temperature extrusion processes.
Coatings & Inks Industry
Functions as an anti-settling agent and thickener for solvent-based and water-based coatings, paints, and printing inks. Prevents pigment sedimentation during storage, ensures uniform color distribution, and enhances coating adhesion to metal and plastic substrates.
Pharmaceutical & Cosmetics
Food-grade aluminum stearate is used as an excipient in tablet formulations and a thickening agent in cosmetics (e.g., creams, lotions) due to its non-toxicity and excellent emulsifying properties.
| Specification Category | Test Item | Industrial Grade (Export Standard) | Food/Pharmaceutical Grade |
| Basic Properties | Appearance | White powder/granule/paste | White odorless powder |
| Active Content (Aluminum Stearate) | ≥98.0% | ≥99.0% | |
| Moisture Content | ≤0.5% | ≤0.3% | |
| Chemical Composition | Aluminum Content | 4.0–5.0% | 4.2–4.8% |
| Free Stearic Acid | ≤2.0% | ≤1.0% | |
| Heavy Metal (Pb) | ≤10 ppm | ≤5 ppm | |
| Heavy Metal (Cd) | ≤5 ppm | ≤2 ppm | |
| Physical Properties | Particle Size (D50, Powder) | 10–50 μm | 5–20 μm |
| Granule Diameter (Granule) | 0.5–2.0 mm | 0.8–1.5 mm | |
| Melting Point | 100–115°C | 105–110°C | |
| Performance Index | Hydrophobicity | Pass (water contact angle ≥90°) | Pass |
| Dispersion Stability (Paste) | ≥24h (no stratification) | ≥48h |