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

Clariant Exolit AP 740 S Flame Retardant

Clariant Exolit AP 740 S is a halogen-free, phosphorus-based intumescent flame retardant designed for polyolefins and engineering plastics. It delivers excellent UL94 V-0 performance at low loadings, maintains good mechanical properties, and offers superior thermal stability and processing safety. Widely used in automotive, electronics, and wire & cable applications requiring RoHS/REACH compliance.
  • clariant exolit ap 740 s flame retardant_b18112ef
  • clariant exolit ap 740 s flame retardant_b18112ef

Features Of Clariant Exolit AP 740 S Flame Retardant

  1. Halogen-free, phosphorus-based intumescent flame retardant for enhanced environmental and regulatory compliance.

  2. Excellent thermal stability up to 300 °C, supporting high-processing-temperature polymers such as polyamides and PBT.

  3. Low smoke and low toxicity emissions during combustion, meeting stringent fire safety standards (e.g., UL 94 V-0, EN 45545-2).

  4. Good dispersion and compatibility in engineering thermoplastics without significant impact on mechanical properties.

  5. Non-migrating formulation ensures long-term flame-retardant performance and surface integrity.

Typical Applications Of Clariant Exolit AP 740 S Flame Retardant

  1. Electrical and electronic enclosures requiring UL 94 V-0 rating.

  2. Automotive interior components including connectors, junction boxes, and HVAC parts.

  3. Railway seating and interior panels compliant with EN 45545-2 R22/R23 hazard levels.

  4. Industrial housings and power tool casings exposed to elevated operating temperatures.

  5. 3D-printed functional prototypes and end-use parts in flame-retardant PA12 and PA6 blends.

Specifications Of Clariant Exolit AP 740 S Flame Retardant

Chemical TypeIntumescent, phosphorus–nitrogen synergistic system
Product FormFree-flowing white to off-white granules
AppearanceHomogeneous granular solid, no visible dust or agglomerates
Density (23 °C)~1.35 g/cm³
Moisture Content (max.)0.3 wt.%
Decomposition Onset Temperature≥250 °C (by TGA, 10 K/min, air)
Primary ApplicationsPA6, PA66, PBT, and co-polyester compounds
Key FeaturesHalogen-free, RoHS-compliant, REACH registered


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