Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Melapur MC50 Flame Retardant

BASF Melapur MC50 is a melamine-based flame retardant from the Melapur series, designed for rigid polyurethane foams. It offers excellent thermal stability, low smoke emission, and halogen-free fire protection. Compatible with standard PU formulations, it enhances LOI and meets stringent fire safety standards like DIN 4102 B1 and EN 13501-1. Widely used in insulation and construction applications.
  • basf melapur mc50 flame retardant_1581ee43
  • basf melapur mc50 flame retardant_1581ee43

Features Of BASF Melapur MC50 Flame Retardant

  1. Halogen-free phosphorus-based flame retardant offering excellent fire safety performance without releasing corrosive or toxic fumes during combustion.

  2. High thermal stability enabling processing at typical engineering polymer temperatures (up to 300 °C) without significant decomposition.

  3. Good compatibility and dispersion in polyamide 6 and polyamide 66 matrices, supporting uniform flame retardancy and mechanical property retention.

  4. Low volatility and minimal plate-out tendency, contributing to stable long-term processing and clean mold operation.

  5. Complies with major regulatory frameworks including RoHS, REACH, and UL 94 V-0 (at appropriate loading in PA6/PA66).

Typical Applications Of BASF Melapur MC50 Flame Retardant

  1. Electrical and electronic components requiring UL 94 V-0 rated housings, connectors, and insulators.

  2. Automotive interior parts such as junction boxes, sensor housings, and under-hood components subject to flame spread requirements.

  3. Industrial automation housings and enclosures where halogen-free fire protection is mandated by OEM specifications.

  4. Consumer appliance casings including power tools, kitchen appliances, and HVAC control units.

  5. 3D printing filaments based on flame-retarded polyamide for functional prototyping in regulated environments.

Specifications Of BASF Melapur MC50 Flame Retardant

Chemical TypeOrganophosphorus compound (melamine phosphate derivative)
Product FormFree-flowing white granules
AppearanceWhite to off-white granular solid
Density (23 °C)1.4–1.5 g/cm³
Melting Range280–310 °C (decomposition onset)
Moisture Content (max.)0.3 wt.%
Primary ApplicationsFlame retardant for polyamide 6 and polyamide 66
Key FeaturesHalogen-free, UL 94 V-0 capable, RoHS/REACH compliant


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