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

Clariant Hostaperm Blue A4R Pigment

Clariant Hostaperm Blue A4R is a high-performance organic pigment from the Hostaperm® series, offering excellent lightfastness, heat stability and dispersibility in plastics and coatings. It delivers intense blue shade with superior chroma and weather resistance, widely used in automotive finishes, engineering plastics and industrial applications. This azo-based pigment meets stringent regulatory standards including REACH and RoHS compliance.
  • clariant hostaperm blue a4r pigment_2fa1b322
  • clariant hostaperm blue a4r pigment_2fa1b322

Features Of Clariant Hostaperm Blue A4R Pigment

  1. High chroma and excellent blue shade consistency for precise color matching.

  2. Outstanding thermal stability up to 280 °C, suitable for demanding processing conditions.

  3. Good dispersibility in both polar and non-polar polymer systems including polyolefins and engineering plastics.

  4. Excellent lightfastness and weather resistance (ISO 105-B02, Grade 7–8).

  5. Low migration behavior, ensuring color integrity in food-contact and medical-grade applications.

Typical Applications Of Clariant Hostaperm Blue A4R Pigment

  1. Polypropylene (PP) and polyethylene (PE) injection-molded parts.

  2. Automotive interior components requiring high UV and heat resistance.

  3. Household appliances with stringent regulatory and aesthetic requirements.

  4. Technical films and blow-molded containers for packaging.

  5. Engineering plastics such as ABS, PC/ABS blends, and polyamides.

Specifications Of Clariant Hostaperm Blue A4R Pigment

Chemical TypeHigh-performance perylene pigment
Product FormFree-flowing powder
AppearanceDeep blue-violet free-flowing powder
Primary ApplicationsPolyolefins, engineering plastics, masterbatches
Key FeaturesThermal stability, low migration, high tinctorial strength
Regulatory ComplianceEU REACH registered; compliant with FDA 21 CFR §178.3297 for polymers
Particle Size (D50)Approx. 0.08–0.12 µm (by laser diffraction)
Heat ResistanceUp to 280 °C (short-term)


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