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

Clariant Exolit AP 766 Flame Retardants

Clariant Flame Retardant Exolit AP 766 (TP) is a halogen-free flame retardant based on phosphorus-nitrogen synergy. It adopts an intumescent flame-retardant mechanism—when thermoplastic foams or crosslinkers contact flame, it forms a stable surface barrier. This barrier provides thermal insulation, reduces oxygen access, and prevents molten polymer dripping.

Features Of Clariant Exolit AP 423 Flame Retardants

  1. Controlled Activation - Precisely triggers at 220-250°C fire temperatures

  2. Water-Resistant Core - Withstands 100+ hours humidity exposure (85°C/85% RH)

  3. Acid Buffering - pH-neutral surface protects sensitive formulation ingredients

  4. Synergistic Optimization - Enhances char yield by 30-50% versus standard APP

  5. Dust-Free Handling - Surface-treated particles minimize workplace particulates

Typical Applications Of Clariant Exolit AP 423 Flame Retardants

  1. Structural Steel Protection - 3-hour fire-rated beams (BS 476-20/21)

  2. Offshore Platform Coatings - HEMPASIL XIO 9000-compliant systems

  3. Tunnel Cladding - EN 1364-3 certified concrete protection

  4. Aircraft Cabin Interiors - FAA 25.853 compliant decorative layers

Specifications Of Clariant Exolit AP 423 Flame Retardants

Particle SizeD50 12-18μm (laser diffraction)
Solubility<0.1g/100ml (23°C water)
Phosphorus Content30-32% (as P₂O₅ equivalent)
Bulk Density0.65-0.75 g/cm³
Decomposition Range250-350°C (TGA)
pH Value6.5-7.5 (10% aqueous suspension)
Packaging25kg multilayer kraft bags


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