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Modified magnesium hydroxide
Applications: Flame retardants in the rubber and plastics industry, marine chemicals
Brief description: The coated magnesium hydroxide has better performance and can meet more flame retardant and product usage requirements. It is mostly used in the rubber industry, and slurry products are mostly used as marine chemicals.
Physical characteristics: good fluidity, fine particle size, average purity (above 90)
Chemical characteristics: environmentally friendly
Appearance characteristics: white fluffy powder
| Items | units | indicators |
| Appearance | White powder | |
| Mg(OH)2 % | %（W/W） | ≥90 |
| CaO | %（W/W） | ≤3.0 |
| Hydrochloric acid insoluble matter % | %（W/W） | ≤5.0 |
| Fe | %（W/W） | ≤0.15 |
| CL- | %（W/W） | ≤0.01 |
| AL | %（W/W） | ≤0.14 |
| Loss on ignition | %（W/W） | ≥29-30 |
| Moisture | %（W/W） | ≤0.3 |
| Whiteness | %（W/W） | ≥90 |
| Granularity（D50)UM | %（W/W） | ≤5.0 |
| Granularity（D97)UM | %（W/W） | ≤15 |
Application: flame retardant, filler, PVC additive, plastic additive.
Package:25kg or 1000kg per bag package.
The core of the magnesium hydroxide (surface-modified magnesium hydroxide) coating is to form an organic/inorganic coating layer on the surface of Mg(OH)₂ powder, while maintaining the halogen-free, smoke-reducing, and non-toxic characteristics of the flame-retardant nature. It has good fluidity and is more evenly dispersed.
Stearic acid / fatty acid-coated magnesium hydroxide: Low cost, good fluidity, suitable for common plastics such as PP, PE, and EVA.
Silane coupling agent-coated magnesium hydroxide: Strong chemical bonding, resistant to hydrolysis, better mechanical properties / flame retardancy, suitable for engineering plastics, rubber, and cables.
1. Better compatibility with plastics and rubber, the surface becomes hydrophobic, and it combines more tightly with high-molecular materials such as PP, PE, EVA, and epoxy, without repelling or layering.
2. Less prone to agglomeration, more evenly dispersed, and better fluidity.
3. Better mechanical properties under high filling, not brittle or cracked, with significantly higher impact strength, tensile strength, and toughness compared to unmodified magnesium hydroxide, able to balance flame retardancy and strength.
4. Higher flame retardancy efficiency, better smoke suppression effect, lower heat release rate, and smaller smoke density, suitable for high-demand fields such as electrical wires and cables, building materials, etc.
5. Low oil absorption rate, saving resin and additives, lower formulation cost, better material feel and surface gloss.
Q1: Are you a manufacturer?
A1:Yes, we are a professional manufacturer of magnesium oxide and magnesium hydroxide based in Weifang City, Shandong Province, China.
Question 2: What about product samples?
A2: We can provide free samples of up to 2 kg (excluding shipping costs).
Question 3: What is the packaging for the goods?
A3: 20kg/25kg woven bags, ton bags (bulk bags), or customized packaging. Magnesium hydroxide slurry is packaged in IBC barrel.
Question 4: When is delivery scheduled?
A4: We typically ship goods within 3-15 days of receiving customer payment.
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