Custom MCA for Nylon 6 (PA6)

MCA for Nylon 6 (PA6)

-- Steady & Reliable Manufacturer --

Introduction

Polyamide 6 is a staple engineering plastic for electrical connectors, switchgear parts, and appliance components, where flame resistance is frequently a regulatory requirement. Melamine cyanurate (MCA) for Nylon 6 (PA6) is a halogen-free, nitrogen based flame retardant that helps unreinforced PA6 compounds reach UL 94 V-0 without the corrosive gases and heavy smoke associated with halogenated systems.

As a manufacturer, we supply MCA in fine particle grades designed for melt compounding on twin-screw extruders. In a fire, MCA absorbs heat as it decomposes and releases nitrogen-rich gases that dilute combustible vapors, while promoting melt dripping that carries heat away from the flame front. Narrow particle size distribution and low moisture are central to our grades, since both directly affect dispersion and the surface finish of molded parts.

MCA remains stable at normal PA6 processing temperatures of roughly 230 to 270°C, so it can be fed with the polymer at the main throat of the extruder without special handling equipment.

Specification

Parameter Typical Value
Appearance White fine powder
Chemical Name Melamine cyanurate (CAS 37640-57-6)
Nitrogen Content 48.5 to 49.5%
Particle Size (D50) 2 to 4 microns (finer grades available)
Moisture Content 0.2% max
Decomposition Onset Above 320°C
Recommended Loading in Unfilled PA6 6 to 12% by weight, depending on part thickness
Packaging 25kg kraft bags with PE liner, 25kg woven bags, or 500kg / 1000kg jumbo bags

Values are typical and vary by product code. Each shipment includes a certificate of analysis, and technical data sheets for every grade are available on request.

Application

MCA treated PA6 compounds are used where halogen-free fire protection is needed in thin-wall molded parts.

  • Electrical connectors and terminal blocks: Low-voltage connectors and terminals molded from unreinforced PA6.
  • Switches, relays, and circuit breaker housings: Insulating components that must pass glow wire and UL 94 requirements.
  • Household appliance parts: Plugs, sockets, and internal structural parts in small appliances and power tools.
  • Cable management: Cable ties, clips, and wire harness accessories.
  • Extruded profiles and films: Halogen-free flame-retardant PA6 sheets, rods, and thin films.

Advantages

  • Halogen-free chemistry: No halogenated gases released during combustion, supporting RoHS-oriented and low-smoke product designs.
  • Fine, uniform particles: Controlled particle size supports good dispersion, smooth surface finish, and retention of impact strength.
  • Thermal stability: Stable across the standard PA6 processing window with low risk of degradation during compounding.
  • Electrical performance: Helps maintain good insulation and tracking resistance, which matters for connector and switchgear parts.
  • Compounding support: Guidance on feeding, drying, and screw design for customers moving from lab trials to production.

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Manufacturing Facility in XUSEN

We have our own production workshops and warehouses, equipped with complete production and quality inspection equipment.
As China MCA for Nylon 6 (PA6) Suppliers and MCA for Nylon 6 (PA6) Factory., With over 20 years in developing halogen-free flame-retardant products positions us as industry leaders in providing domestic flame-retardant solutions.
All our products comply with the stringent requirements of the WEEE, ROHS, and EUP directives.

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Synthetic Technology

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Composite Flame Retardant Technology

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Surface Treatment Technology

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Manufacturing Technology of Masterbatch

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