Hexagonal Platelet Magnesium Hydroxide for Plastic Applications

Hexagonal platelet magnesium hydroxide (Mg(OH)₂) is a high-performance, halogen-free flame retardant and functional filler widely used in plastic and polymer compounds.
Thanks to its unique platelet crystal structure and controlled particle morphology, it provides excellent flame-retardant efficiency, mechanical reinforcement, and processing stability.

Key Features & Advantages

• Efficient Halogen-Free Flame Retardancy
  Decomposes endothermically at high temperatures, releasing water vapor to absorb heat and dilute combustible gases, while forming a protective MgO barrier layer.

• Platelet Structure for Enhanced Barrier Effect
  The hexagonal platelet morphology creates a “tortuous path” within the polymer matrix, effectively slowing heat transfer and flame propagation.

• Improved Mechanical Properties
  Acts as a reinforcing filler, enhancing stiffness, dimensional stability, and flexural strength with minimal impact on impact resistance.

• Excellent Dispersion & Processability
  Optimized particle shape ensures good dispersion in polymer systems, reduced agglomeration, and smooth processing during extrusion and injection molding.

• Environmentally Friendly & Safe
  Non-toxic, halogen-free, and compliant with RoHS and REACH requirements, suitable for eco-friendly and low-smoke formulations.

Typical Plastic Applications

• PVC compounds (rigid and flexible)

• HFFR cable compounds

• PE / HDPE / LDPE

• PP

• EVA

• TPE / TPU

• Flame-retardant engineering plastics

Application Fields

• Wire and cable insulation & sheathing

• Building and construction materials

• Home appliance housings

• Automotive interior components

• Plastic sheets, films, and profiles

Why Choose Platelet Magnesium Hydroxide?

Compared with conventional magnesium hydroxide, hexagonal platelet grades offer higher flame-retardant efficiency at the same loading, better reinforcement, and improved overall performance balance, making them ideal for high-end flame-retardant plastic formulations.