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

Clariant PV FAST YELLOW H4G PY151 Organic Pigment

Clariant PV FAST YELLOW H4G PY151 is a high-performance organic pigment offering exceptional lightfastness thermal stability and dispersion in plastics. Part of Clariant’s PV FAST series it delivers brilliant yellow hue with outstanding migration resistance ideal for PVC polyolefins and engineering resins. Widely used in automotive interior applications demanding stringent durability and color consistency under heat and UV exposure.
  • clariant pv fast yellow h4g py151 organic pigment_ae83a2d3
  • clariant pv fast yellow h4g py151 organic pigment_ae83a2d3

Features Of Clariant PV FAST YELLOW H4G PY151 Organic Pigment

  1. High chroma yellow shade with excellent brightness and clean greenish-yellow undertone.

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

  3. Excellent lightfastness and weather resistance (Xenon arc rating: ISO 105-B02 Grade 7–8).

  4. Good migration resistance in PVC, polyolefins, and engineering plastics.

  5. Optimized particle size distribution for high color strength and dispersion efficiency.

Typical Applications Of Clariant PV FAST YELLOW H4G PY151 Organic Pigment

  1. Polyvinyl chloride (PVC) profiles, flooring, and wire & cable sheathing.

  2. Polyolefin masterbatches for injection molding and blow molding applications.

  3. Engineering plastics including ABS, PS, and PC compounds.

  4. General-purpose solvent-based and water-based industrial coatings.

  5. Flexible and rigid packaging films requiring food-contact compliance (EU 10/2011, FDA 21 CFR §178.3297).

Specifications Of Clariant PV FAST YELLOW H4G PY151 Organic Pigment

Chemical TypeAzo pigment (Disazo, Pyrazolone type)
Product FormFree-flowing powder
AppearanceBright greenish-yellow powder
Primary ApplicationsPVC, polyolefins, engineering plastics, industrial coatings
Key FeaturesHigh tinctorial strength, low dust, excellent dispersibility
BenefitsConsistent batch-to-batch color, reduced processing energy, minimal filter clogging
Regulatory ComplianceREACH registered, RoHS compliant, non-halogenated
Storage ConditionsStore in cool, dry place; avoid direct sunlight and moisture


Clariant PV FAST YELLOW H4G PY151 Organic Pigment – Frequently Asked Questions (FAQ)

Q1: What are the key performance advantages of PV FAST YELLOW H4G compared to other PY151 pigments?

A: PV FAST YELLOW H4G offers enhanced heat stability and improved dispersion behavior in demanding polymer systems, particularly polyolefins and engineering thermoplastics. Its optimized particle size distribution contributes to superior color strength, brightness, and batch-to-batch consistency.


Q2: Is PV FAST YELLOW H4G suitable for food-contact plastics applications?

A: This pigment is designed for use in plastics intended for indirect food contact, subject to compliance with applicable regional regulations. Formulators must validate final article compliance based on end-use conditions, processing parameters, and regulatory requirements in the target market.


Q3: How does PV FAST YELLOW H4G perform under high-temperature processing such as injection molding or extrusion?

A: It demonstrates excellent thermal stability up to typical polyolefin and polyester processing temperatures, maintaining color integrity without significant degradation or gas-phase discoloration. Performance may vary depending on residence time, shear profile, and resin matrix.


Q4: What is the recommended method for incorporating PV FAST YELLOW H4G into polymer systems?

A: It is typically supplied as a dry powder or pre-dispersed masterbatch. For optimal results, direct addition with high-shear mixing or use of a compatible carrier-based masterbatch is recommended. Dispersion efficiency depends on equipment type, resin compatibility, and formulation viscosity.



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