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

Arichem KSS-FR F-535 Flame Retardant

Arichem KSS-FR F-535 Flame Retardant is a halogen-free, phosphorus-based additive designed for engineering plastics like PBT and PC blends. It delivers excellent thermal stability, low smoke emission, and UL94 V-0 rating at low loading levels. Compatible with common polymer processing methods, it enhances flame resistance without compromising mechanical properties or color stability.
  • arichem kss fr f 535 flame retardant_387d5c14
  • arichem kss fr f 535 flame retardant_387d5c14

Features Of Arichem KSS-FR F-535 Flame Retardant

  1. Halogen-free formulation ensures low smoke density and reduced toxic gas emission during combustion.

  2. Excellent thermal stability, maintaining performance up to 300 °C in polymer processing environments.

  3. High phosphorus content enables efficient char formation and condensed-phase flame inhibition.

  4. Good compatibility with engineering thermoplastics including polyamide (PA6, PA66) and polybutylene terephthalate (PBT).

  5. Non-migrating design minimizes blooming and surface leaching during long-term use.

Typical Applications Of Arichem KSS-FR F-535 Flame Retardant

  1. Electrical and electronic enclosures requiring UL94 V-0 rating at thin-wall thicknesses.

  2. Automotive interior components such as connectors, sensor housings, and control modules.

  3. 3C consumer electronics parts including laptop chassis, power adapters, and charging docks.

  4. Industrial automation housings exposed to elevated ambient temperatures and flame exposure risks.

  5. LED lighting fixtures where low-corrosivity and halogen-free compliance are mandatory.

Specifications Of Arichem KSS-FR F-535 Flame Retardant

Chemical TypeOrganophosphorus-based, intumescent flame retardant
Product FormFree-flowing white to off-white granular powder
AppearanceUniform granules, no visible impurities
Phosphorus Content (as P)≥18.5 wt%
Moisture Content≤0.3 wt% (by Karl Fischer titration)
Particle Size (D90)≤350 µm
Density1.45–1.52 g/cm³ (at 25 °C)
Storage StabilityStable for ≥24 months in sealed containers at <30 °C and <60% RH


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