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

Clariant Exolit AP 435 Flame Retardant

Clariant Exolit AP 435 is a halogen-free, phosphorus-based flame retardant designed for polyolefins and engineering plastics. It offers excellent thermal stability, low smoke emission, and good mechanical property retention. Ideal for wire & cable, automotive, and electronics applications requiring UL94 V-0 rating and RoHS/REACH compliance.
  • clariant exolit ap 435 flame retardant_f9ff6959
  • clariant exolit ap 435 flame retardant_f9ff6959

Features Of Clariant Exolit AP 435 Flame Retardant

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

  2. Excellent thermal stability up to 280 °C, supporting high-processing-temperature polymers such as polyamides and polyesters.

  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 performance retention and surface integrity in finished parts.

Typical Applications Of Clariant Exolit AP 435 Flame Retardant

  1. Electrical and electronic enclosures requiring UL 94 V-0 rating at thin wall sections (e.g., connectors, circuit breakers).

  2. Automotive interior components including dashboard supports, junction boxes, and battery housings compliant with FMVSS 302 and UN ECE R118.

  3. Railway applications such as seating frames and control panel housings meeting EN 45545-2 HL3 requirements.

  4. Industrial automation housings and power distribution units demanding low-corrosivity and halogen-free solutions.

Specifications Of Clariant Exolit AP 435 Flame Retardant

Chemical TypeIntumescent, phosphorus–nitrogen synergistic system
Product FormFine white to off-white free-flowing powder
AppearanceFree-flowing crystalline powder
Primary ApplicationsPolyamide 6, polyamide 66, PBT, and other engineering thermoplastics
Key FeaturesHalogen-free, RoHS-compliant, REACH registered
BenefitsEnables UL 94 V-0 at ≤1.6 mm; reduces smoke density (Ds max < 100 per ASTM E662)
Density (g/cm³)~1.35–1.45 (at 23 °C)
Decomposition Onset (TGA, 10 % weight loss)≈250 °C (in air)


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