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

Clariant Red Phosphorus HB 400 Catalyst

Clariant Red Phosphorus HB 400 Catalyst is a halogen-free flame retardant additive from Clariant’s Exolit® RP series, designed for thermoplastics like polyamide and PBT. It delivers high thermal stability, low smoke emission, and excellent dispersion—ensuring UL94 V-0 rating without compromising mechanical properties or processing safety.
  • clariant red phosphorus hb 400 catalyst_e28c7d05
  • clariant red phosphorus hb 400 catalyst_e28c7d05

Features Of Clariant Red Phosphorus HB 400 Catalyst

  1. High thermal stability suitable for demanding high-temperature polymer processing conditions.

  2. Low volatility and minimal phosphine gas emission during compounding and extrusion.

  3. Excellent dispersion performance in engineering thermoplastics including polyamides and polyesters.

  4. Halogen-free flame retardant catalyst enabling compliance with RoHS and REACH regulations.

  5. Consistent batch-to-batch performance ensured through stringent Clariant quality control protocols.

Typical Applications Of Clariant Red Phosphorus HB 400 Catalyst

  1. Flame-retardant polyamide 6 and polyamide 66 compounds for automotive under-hood components.

  2. Enhanced fire-safe engineering plastics used in electrical and electronic connectors.

  3. High-performance flame-retardant polybutylene terephthalate (PBT) for industrial housings.

  4. Thermoplastic composites requiring UL 94 V-0 rating at thin-wall sections.

Specifications Of Clariant Red Phosphorus HB 400 Catalyst

Chemical TypeStabilized red phosphorus
Product FormFree-flowing granules
AppearanceDark red to burgundy granules
Phosphorus Content (as P)≥ 85.0 wt %
Moisture Content< 0.3 wt %
Particle Size (d50)150–250 µm
Primary ApplicationsHalogen-free flame retardancy in polyamides, PBT, and PET
Key FeaturesThermal stabilization, low volatility, halogen-free, RoHS-compliant


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