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High-purity magnesium hydroxide with low chloride and heavy metal content for enhanced polymer compatibility.
Optimized particle size distribution for improved dispersion in thermoplastics and elastomers.
Endothermic decomposition at ~340 °C, providing effective flame inhibition and smoke suppression without halogen emissions.
Non-toxic, environmentally sustainable alternative to brominated and antimony-based flame retardants.
Excellent thermal stability and pH buffering capacity, supporting processing stability during extrusion and molding.
Low-smoke, halogen-free cables and wires (e.g., LSZH sheathing compounds).
Flame-retarded polypropylene (PP) and polyethylene (PE) for automotive interior components.
Thermoplastic elastomers (TPEs) used in building and construction sealants and profiles.
Engineered plastics in electrical enclosures and junction boxes requiring UL 94 V-0 compliance.
Rubber compounds for conveyor belts and mining hoses where fire safety and low toxicity are critical.
| Chemical Type | Magnesium hydroxide, Mg(OH)₂ |
| Product Form | Free-flowing white powder |
| Appearance | White, odorless, fine particulate solid |
| Primary Applications | Halogen-free flame retardant for polymers and elastomers |
| Key Features | Low volatility, high decomposition temperature, non-corrosive |
| Benefits | Reduces heat release rate (HRR), suppresses smoke, improves char formation |
| pH (10% aqueous slurry) | 10.0–10.5 |
| Moisture Content (wt%, max) | 0.5% |
Q1: What distinguishes MAGNIFIN H-5IV from other magnesium hydroxide flame retardants?
A: MAGNIFIN H-5IV is a surface-treated, ultra-fine magnesium hydroxide grade optimized for high-loading applications in thermoplastics and elastomers. Its tailored particle morphology and proprietary surface treatment enhance dispersion stability, improve mechanical property retention, and support efficient flame inhibition at elevated processing temperatures.
Q2: Is MAGNIFIN H-5IV suitable for halogen-free cable compounds?
A: Yes — MAGNIFIN H-5IV is widely used in halogen-free, low-smoke, zero-halogen (LSZH) cable jacketing and insulation formulations. It provides effective flame retardancy while contributing to low smoke density and reduced corrosivity of combustion gases, aligning with industry expectations for infrastructure and transportation cables.
Q3: How does MAGNIFIN H-5IV perform during high-shear compounding and extrusion?
A: The surface treatment and controlled agglomeration of MAGNIFIN H-5IV promote robust dispersion under high-shear conditions. It demonstrates good thermal stability during typical polymer processing windows and minimizes plate-out or die buildup compared to untreated or coarser Mg(OH)₂ grades.
Q4: Can MAGNIFIN H-5IV be used in polyolefin-based automotive interior parts?
A: Yes — it is commonly incorporated into PP and PE blends for non-structural automotive interior components requiring UL 94 V-0 or V-1 ratings. Its compatibility with common polyolefin stabilizer systems and ability to maintain acceptable melt flow and impact performance make it a preferred choice where low-density fillers and environmental compliance are priorities.
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E-mail: wangxingqiang@ericwchem.com
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