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

Clariant Exolit OP 1311 Flame Retardant

Clariant Exolit OP 1311 is a halogen-free, phosphorus-based flame retardant designed for polyolefins like PP and PE. It offers excellent thermal stability, low smoke emission, and good processability in injection molding and extrusion. The additive enables UL94 V-0 rating at low loading levels while maintaining mechanical properties and colorability. Widely used in automotive, electrical, and consumer goods applications.
  • clariant exolit op 1311 flame retardant_38a0dc05
  • clariant exolit op 1311 flame retardant_38a0dc05

Features Of Clariant Exolit OP 1311 Flame Retardant

  1. Halogen-free, phosphorus-based flame retardant offering excellent fire safety performance.

  2. Designed for efficient dispersion and compatibility in polyolefin-based compounds.

  3. Low smoke and low toxicity during combustion, supporting improved fire safety and environmental compliance.

  4. Good thermal stability up to 280 °C, enabling processing via extrusion and injection molding.

  5. Enables UL 94 V-0 rating at low loadings (typically 15–22 wt%) in PP and PE formulations.

Typical Applications Of Clariant Exolit OP 1311 Flame Retardant

  1. Flame-retarded polypropylene (PP) for automotive interior components.

  2. Wire and cable jacketing compounds based on polyethylene (PE) and thermoplastic elastomers (TPE).

  3. Electrical and electronic housings requiring UL 94 V-0 and RoHS compliance.

  4. Household appliance parts exposed to elevated temperatures and ignition sources.

  5. Industrial packaging materials where flame resistance and regulatory compliance are critical.

Specifications Of Clariant Exolit OP 1311 Flame Retardant

Chemical TypeOrganophosphorus compound
Product FormFree-flowing white granules
AppearanceWhite to off-white granular solid
Density (23 °C)1.45–1.55 g/cm³
Melting Range260–280 °C
Moisture Content (max.)0.3 wt%
pH (1% aqueous suspension)4.5–6.5
Primary ApplicationsPolyolefins (PP, PE), TPEs, and engineering plastics


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