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Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
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  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61
  • Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61

Low-Iron High-Whiteness Synthetic Magnesium Hydroxide ZF-61

ZF-61 is a high-purity, chemically synthesized magnesium hydroxide characterized by a uniform particle size distribution and high whiteness. It is suitable for use in various polymer systems, including thermoplastic and cross-linked polyolefins, PVC, elastomers, and engineering plastics. This product imparts excellent mechanical strength and effectively enhances the flame-retardant properties of polymer materials. It is recommended for use in combination with other additives, such as aluminum hydroxide.

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  • Product Details
  • Characteristics
  • FAQ

Magnesium Hydroxide Content (Pre-coating) (%):

≥98.5

Loss on Ignition (800°C) (%):

≥30

Whiteness (Hunter):

≥97

Median Particle Size (d50):

1.5  µm

Chloride Ions (%):

≤0.5

Iron Ions (%):

≤0.001

Free Moisture (%):

≤0.6

Note:

The listed data represent typical reference values ​​for product performance parameters and do not constitute product specifications.

ZF-61 is a high-purity synthetic magnesium hydroxide distinguished by its exceptionally low iron content — Fe³⁺ ≤ 0.001% — making it the preferred choice in polymer systems where iron-catalysed oxidative degradation is a concern.

With a magnesium hydroxide content of ≥98.5%, a median particle size (d50) of 1.5 μm, and Hunter whiteness of ≥97, ZF-61 supports formulations where both fire performance and long-term colour stability are critical requirements. The ultra-low iron level prevents the yellowing and mechanical property loss that higher-iron grades can introduce during high-temperature processing and heat ageing.

ZF-61 provides excellent mechanical strength in filled polymer compounds. For demanding halogen-free applications, it is recommended to co-formulate ZF-61 with aluminium hydroxide to achieve improved flame-retardant synergy and a broader processing window.

Compatible with thermoplastic and crosslinked polyolefins, PVC, elastomers, and engineering plastics. Surface treatment options are available to further optimise compatibility and dispersion in specific polymer matrices.

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Industrial Fire-Retardant Solutions

Jiangsu Zhuofeng New Materials Technology Co., Ltd. was established in 2020. It is a supplier specializing in the research, production, and marketing of high-performance and environmentally friendly flame retardants. The company's main products include environmentally friendly flame retardants, flame retardant masterbatches, char-forming agents, composite flame retardants, magnesium oxide, etc. Relying on mature products and process technologies as well as standardized management, the company has established several mature high-purity, ultra-fine, and cost-effective flame retardant production lines, established a flame retardant polymer material application testing laboratory, and has carried out industry-university-research cooperation to develop and optimize flame retardant products. The founding team of Zhuofeng Technology has gathered a group of talents who have long been engaged in the research, production, marketing, and management of various functional materials. They can provide users with prompt technical support for application use. At Zhuofeng Technology, we are dedicated to meeting our customers' needs by delivering stable, high-performance, and environmentally friendly flame-retardant product lines. Company strength data: Industry Experience: 6 years; Plant Scale: 18,000 square meters; Production Capacity:20000 tons.

  • 2020Year

    Establishment

  • 18000m²

    Plant Area

  • 10000ton

    Production Capacity

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