Name: Clariant Exolit AP 428 Flame Retardant
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Clariant Exolit AP 428 Flame Retardant

High-performance, halogen-free intumescent flame retardant based on ammonium polyphosphate (APP).
Excellent thermal stability up to approximately 250 °C, supporting processing in engineering thermoplastics.
Low water solubility and good hydrolytic stability, ensuring long-term performance in humid environments.
Enables UL 94 V-0 rating at low loadings in polypropylene (PP) and other polyolefins.
Compatible with common polymer processing methods including injection molding and extrusion.

Typical Applications Of Clariant Exolit AP 428 Flame Retardant

Chemical Type	Ammonium polyphosphate (APP), modified intumescent system
Product Form	Free-flowing white granules
Appearance	White to off-white granular solid
Primary Applications	Polypropylene (PP), polyolefin blends, thermoplastic elastomers (TPE)
Key Features	Halogen-free, RoHS-compliant, REACH registered
Benefits	Low smoke generation, minimal corrosion potential, good mechanical property retention
Density (approx.)	1.9–2.0 g/cm³
Onset Decomposition Temperature	≥ 250 °C (by TGA, 10 K/min, air)

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