In the modern wire and cable industry, fire safety and environmental compliance have become paramount. As standards like CPR (Construction Products Regulation) and RoHS grow increasingly strict, compounders are actively seeking flame retardant solutions that deliver both superior smoke suppression and uncompromised mechanical performance.

Enter Magnesium Hydroxide (MDH)—the ideal eco-friendly, halogen-free flame retardant (HFFR) designed to elevate PVC cable formulations.

Why Choose Magnesium Hydroxide for PVC Cable Compounds?

While Polyvinyl Chloride (PVC) is inherently flame-retardant, high plasticizer loading during cable manufacturing increases flammability and smoke generation. Our specially engineered MDH grade provides a comprehensive multi-functional benefit:

• High-Efficiency Flame Retardancy & Smoke Suppression:Upon decomposition (~330°C), MDH releases endothermic water vapor, cooling the substrate and diluting combustible gases. Simultaneously, it promotes a dense char-forming layer that significantly reduces smoke density and toxic fumes.

• Thermal & Acid Neutralization Stability:With higher thermal stability than traditional hydrated alumina (ATH), MDH operates efficiently at elevated processing temperatures. Moreover, its alkalinizing property effectively absorbs and neutralizes hydrogen chloride (HCl) gas released during PVC combustion, protecting critical equipment and personnel.

• Superior Surface Coating & Dispersion:Equipped with advanced silane coupling agents and surface modifications, our MDH particles feature excellent hydrophobic compatibility with the PVC polymer matrix. This guarantees uniform dispersion, low viscosity build-up, and optimal extrusion flow.

• Preserved Mechanical Integrity:Unlike conventional fillers that cause brittleness, our ultra-fine, tailored particle size distribution (D50) ensures the cable jacket maintains exceptional tensile strength, elongation at break, and flexibility.

Key Applications

Our Flame Retardant MDH series for PVC is tailored for a wide range of demanding cable environments:

• Building & Construction Wires (Low-smoke zero-halogen / low-smoke PVC)

• Automotive & Control Cables

• Power & Industrial Cables

• Communication & Data Cables

Customize Your Formula with Wanfeng

Every cable compounder’s requirement is unique. Beyond our standard grades, we offer customized particle size distributions (PSD), surface treatability, and tailormade packaging to seamlessly integrate into your current production line.

Looking to enhance the fire rating and thermal stability of your PVC cable compounds?

📩 Contact our technical team today at [Your Email] or request a free sample for your lab testing!