Coating, 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.