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High chroma, clean phthalocyanine-based blue shade with excellent bluish undertone.
Outstanding thermal stability up to 280 °C, suitable for demanding high-speed processing.
Excellent lightfastness (ISO 105-B02: Grade 7–8) and weather resistance in outdoor applications.
Good dispersibility in both polar and non-polar polymer systems, including polyolefins and engineering plastics.
Low migration tendency and high resistance to blooming in PVC and flexible vinyl compounds.
Polyolefin masterbatches for injection molding and blow molding.
Engineering thermoplastics including PA6, PA66, and PBT.
Rigid and flexible PVC profiles, cables, and flooring.
Automotive interior trims requiring long-term color stability under UV exposure.
High-performance industrial coatings and coil coatings.
| Chemical Type | Copper phthalocyanine derivative |
| Product Form | Fine free-flowing powder |
| Appearance | Dark blue to violet-blue powder |
| Primary Applications | Polyolefins, engineering plastics, PVC, industrial coatings |
| Key Features | High thermal stability, low migration, excellent dispersion |
| Lightfastness (ISO 105-B02) | Grade 7–8 |
| Heat Stability (in PP) | ≥ 280 °C (5 min, color difference ΔE < 2.0) |
| Particle Size (D50) | Approx. 0.08–0.12 µm |
Q1: What is the primary chemical class of Hostaperm Blue BT-728-D?
A: Hostaperm Blue BT-728-D is a high-performance perylene-based organic pigment, known for its excellent lightfastness, thermal stability, and resistance to migration in demanding polymer applications.
Q2: In which polymers is this pigment most commonly used?
A: It is widely used in engineering thermoplastics such as polyamide (PA), polybutylene terephthalate (PBT), and polyethylene terephthalate (PET), particularly where high-temperature processing and long-term color stability are required.
Q3: Is Hostaperm Blue BT-728-D suitable for food-contact applications?
A: While the pigment itself is not inherently restricted for food-contact use, regulatory compliance depends on the final formulation, processing conditions, and applicable regional regulations. Customers must conduct full regulatory evaluation—including extraction testing—within their specific application matrix.
Q4: How does this pigment perform under UV exposure and weathering?
A: As a perylene derivative, Hostaperm Blue BT-728-D delivers outstanding UV stability and weather resistance, making it suitable for outdoor applications where long-term color retention is critical—especially when properly dispersed and compounded.
Q5: What is the recommended dispersion method for optimal performance?
A: Optimal results are achieved through high-shear compounding—such as twin-screw extrusion—with careful attention to temperature profile and residence time. Pre-dispersed masterbatches are also available and often preferred for consistent dosing and reduced handling variability.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
