Flame Retardants

MCA-B Modified Melamine Cyanurate Halogen Free Flame Retardant

MCA-B is a modified melamine cyanurate designed for halogen free flame-retardant systems requiring high thermal stability and low smoke output. Its controlled surface modification improves dispersion, increases compatibility, and reduces the impact on mechanical strength compared with standard MCA. MCA-B releases inert gases during combustion and supports the formation of a stable insulating residue. It is suitable for polyamide systems, adhesive formulations, cable compounds, and low-toxicity FR applications.

Attributes

Key Features and Benefits

• Halogen free composition supports low-toxicity and low-smoke system requirements.
• Improved dispersion reduces agglomeration and promotes smooth polymer flow.
• Thermal stability ≥330 °C enables use in PA6 and PA66 high-temperature processing.
• Minimal effect on tensile and elongation properties compared with standard MCA.
• High whiteness (≥99 percent) supports bright white and colour-critical applications.
• Strong compatibility with PA resins and adhesives without causing gelation or instability.
• Suitable for synergistic use with nitrogen or phosphorus flame-retardant systems.

Specifications

Technical Highlights

• Appearance: White powder.
• Whiteness: ≥99 percent.
• Bulk density: 0.15–0.35 g/cm³.
• Cyanuric acid content: ≤0.2 percent.
• Moisture: ≤0.5 percent.
• Decomposition temperature: ≥330 °C.
• pH (10 percent suspension, 25 °C): 5.0–7.0.
• Recommended loading (PA systems): 8–14 percent depending on performance requirements.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

• Engineering plastics including PA6, PA66, and PA blends for injection molding, extrusion, and electrical components.
• Automotive under-the-hood parts, connectors, plugs, and housings.
• Adhesives and sealants for halogen free bonding applications.
• Industrial adhesives requiring UL or V-0 performance.
• Wire and cable halogen free low-smoke compounds.
• Building materials including profiles, sheets, fittings, and interior components.
• Rubber formulations needing low-smoke performance.
• FR coatings for textiles and fabric back-coating.
• Synergistic formulations with phosphate or nitrogen flame retardants.