Kela Material presents Cerium Orange - One of the Cerium-Based Inorganic Pigment Series The main component of Kela cerium-based inorganic pigments is cerium sulfide. Cerium sulfide (Ce₂S₃) has a chemical composition approximating Ce₂S₃ and forms orthorhombic crystals. It is insoluble in water and strong alkaline solutions but readily dissolves in acids, releasing hydrogen sulfide gas. Under inert gas and reducing atmospheres, it maintains chemical stability up to 1500°C, while in oxidizing atmospheres it remains stable up to 350°C. Color Range and Properties The Kela Cerium Red cerium-based inorganic pigment series covers a color spectrum from deep red to orange-yellow. Cerium Red is a soft crystalline phase material that does not damage the structure of glass fibers in plastics and can actually enhance the mechanical properties of glass fibers. Key Advantages Non-toxic: Safe for use and complies with EU export standards and related national safety, health, and environmental regulations Strong covering power: Excellent opacity and color strength Good thermal stability: Maintains performance at high temperatures Environmentally friendly: Serves as an excellent substitute for toxic cadmium sulfide-based or heavy metal-based inorganic pigments Applications As a new type of green, environmentally friendly pigment, Cerium Red's high temperature resistance makes it widely applicable in: Plastics industry Rubber industry Other applications requiring heat-resistant, non-toxic colorants This innovative pigment represents a significant advancement in replacing traditional toxic heavy metal pigments while maintaining superior performance characteristics and meeting stringent international safety standards.

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Kela New Materials specializes in Transparent sub-micron Cobalt Blue—a high-purity cobalt aluminate spinel (CoAl₂O₄, PB28) engineered for advanced industries where conventional cobalt blue pigments cannot meet performance requirements. With true sub-micron-scale particle control, exceptional thermal stability, and a clean, vivid cobalt-blue tone, our transparent cobalt blue delivers superior optical, thermal, and chemical performance across cutting-edge applications. At the heart of our material is an inverse spinel crystal structure that ensures: • Transparent or semi-transparent blue color in inks, coatings, ceramics, and glass • Exceptional heat resistance (up to 1000–1300°C) • High UV and weathering stability • Low ionic migration and ultra-low impurities • Excellent dispersion in polymers, inks, and ceramic matrices • Environmentally safe, non-toxic, non-leaching composition

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Bismuth vanadate yellow is one of the most important next-generation inorganic functional pigments. This pigment is based on bismuth vanadate (BiVO4), known for its bright lemon-yellow shade, outstanding opacity, and the highest tinting strength among all non-cadmium yellow pigments. It delivers excellent reflectance at ~580 nm, making it the ideal replacement for traditional chrome yellow. Unlike heavy-metal pigments, bismuth vanadate offers exceptional weather resistance, lightfastness, and color stability while meeting global environmental and safety requirements. Its high performance and non-hazardous nature significantly expand application possibilities in coatings, plastics, masterbatch, and industrial materials.

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Kela Materials presents Cobalt Chrome Blue PB117, a high-stability spinel blue pigment based on cobalt chromite (CoCr₂O₄). This pigment offers a deep, clean blue–green shade, exceptional thermal resistance up to 1280°C, and excellent structural stability under extreme processing conditions.

PB117 provides outstanding UV reflectance, excellent opacity, and strong resistance to chemicals and weathering. Its spinel crystal structure delivers durability far beyond that of organic pigments and standard metal-oxide blues, making it ideal for coatings, plastics, ceramics, and high-temperature industrial applications.

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Kela Materials presents Copper Chrome Black Spinel (PBk28), a high-performance inorganic black pigment engineered for applications requiring extreme durability, thermal stability, and long-term weather resistance. Based on a copper–chromium spinel structure (CuCr₂O₄), PBk28 delivers deep black coloration with excellent resistance to UV, chemicals, and high processing temperatures. PBk28 contains only trivalent chromium (Cr³⁺) fully locked into a stable spinel lattice, with no hexavalent chromium (Cr(VI)) and no bleeding or migration in polymers. This makes it a safe, RoHS- and REACH-compliant solution for demanding plastics, coatings, ceramics, and construction materials.

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Eco Composite Functional Black, developed by Kela Materials, is a composite inorganic black pigment made primarily from the oxides of copper (Cu), manganese (Mn), and iron (Fe). It delivers a purer and more stable black tone compared with organic pigments and carbon black, while offering far superior thermal resistance (up to 800°C).

PBK526 disperses well in both water-based and solvent-based systems and contains **no antimony and no lead**, making it significantly safer for the environment and for human exposure.

As an eco-friendly pigment designed for modern industrial applications, PBK526 provides strong color strength, stable performance, and excellent compatibility across plastics, coatings, ceramics, inks, and functional composite materials.

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The main component of Kela Cerium Red cerium-based inorganic pigments is cerium sulfide. Cerium sulfide (Ce₂S₃) has a chemical composition approximating Ce₂S₃ and forms orthorhombic crystals. It is insoluble in water and strong alkaline solutions but readily dissolves in acids, releasing hydrogen sulfide gas. Under inert gas and reducing atmospheres, it maintains chemical stability up to 1500°C, while in oxidizing atmospheres it remains stable up to 350°C.

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Kela Materials presents PY184, a high-purity bismuth vanadate (BiVO₄) inorganic pigment known for its bright yellow shade with a slight green undertone. The pigment delivers exceptionally high reflectance near 580 nm, giving it outstanding brightness, chroma, and visual purity.

PY184 can be used alone or combined with organic pigments to adjust tone and strength. It also functions as a direct replacement for lead chromate yellow, offering equivalent or superior color performance without heavy metals—an ideal solution for modern environmental and regulatory requirements.

As a functional pigment, bismuth vanadate also exhibits photocatalytic behavior under light exposure, generating reactive species and providing added resistance to UV-induced degradation in coatings. PY184 is increasingly used in next-generation coating systems, engineering plastics, and high-end color applications.

FAQ

What is Titanium Yellow PY184?
It is a high-purity bismuth vanadate inorganic pigment known for its bright yellow shade, excellent chroma, and high reflectance at 580 nm.

Why is PY184 considered environmentally friendly?
It provides the same performance as lead chromate yellow but contains no heavy metals, making it compliant with global environmental regulations.

Where is PY184 typically used?
In coatings, plastics, inks, automotive materials, and any application requiring strong brightness and long-term stability.

Does PY184 offer photocatalytic properties?
Yes. As a BiVO₄-based pigment, it shows photocatalytic behavior under light, offering added UV protection in coating systems.

Can PY184 be blended with other pigments?
Yes. It blends well with both inorganic and organic pigments to create a wide range of customized yellow-green shades.

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Kela Copper Chrome Black (PBK528) is a high-performance inorganic black pigment produced exclusively by Kela Materials using a proprietary clean formulation.
Unlike conventional copper chrome black pigments on the market, Kela’s PBK528 contains absolutely no cobalt (Co), no aluminum (Al), and no barium (Ba)**.

Kela Materials is currently **the only manufacturer worldwide** that offers a Cu–Cr black pigment with this metal-free formulation, delivering superior safety, environmental compliance, and global regulatory advantages.

PBK528 provides an exceptionally pure black tone, outstanding heat resistance, weather stability, chemical durability, non-bleeding behavior, and excellent dispersion. It performs better than carbon black, iron oxides, and mixed-metal blacks in high-temperature coatings, engineering plastics, and outdoor applications.

With proven performance in demanding customer applications since 2009, PBK528 has earned consistent market recognition for its stability, color efficiency, and safe heavy-metal-free profile.

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Cobalt Violet (PV514A), developed by Kela Materials, is an inorganic purple pigment produced by high-temperature calcination of cobalt phosphate. It delivers a pure, brilliant violet shade with medium depth and excellent color clarity.

This pigment shows outstanding stability, non-migration, and excellent compatibility with both organic and inorganic pigment systems, enabling fine-tuning of color tone and tinting strength across coatings, plastics, and artistic applications.

PV514A provides excellent heat resistance, lightfastness, and outdoor weather durability. However, as with most cobalt phosphate pigments, its acid and alkali resistance is relatively low, making it best suited for neutral or slightly acidic systems.

FAQ

What is Kela Cobalt Violet PV514A?
Kela Cobalt Violet PV514A is a high-purity inorganic purple pigment produced by high-temperature calcination of cobalt phosphate, offering a clean, brilliant violet shade with excellent stability.

What are the main advantages of PV514A?
It provides excellent heat resistance, lightfastness, and outdoor weather durability, with a non-migrating inorganic structure and good compatibility with most resin and polymer systems.

Where is PV514A typically used?
PV514A is used in high-performance coatings, plastics, masterbatch, ceramics, artistic paints, and other applications that require long-term color stability and a pure violet tone.

Can PV514A be blended with other pigments?
Yes. It can be combined with both organic and inorganic pigments to fine-tune color tone, depth, and tinting strength in coatings and plastic systems.

Does PV514A have any limitations?
Like most cobalt phosphate pigments, its resistance to strong acids and strong alkalis is relatively low, so it is best used in neutral or slightly acidic systems.

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PB28 Cobalt Blue is a high-performance inorganic blue pigment based on a cobalt aluminate spinel structure. It is engineered for applications requiring high thermal stability, chemical resistance, and long-term color durability, including plastics, industrial coatings, ceramics, glass, and ceramic ink systems.

Industry Challenges in High-Temperature and Ceramic Ink Applications

In high-temperature plastics, industrial coatings, and ceramic ink systems, pigment stability is a critical performance factor. Many conventional blue pigments suffer from thermal degradation, chemical instability, or color drift during processing or long-term service.

Why Conventional Blue Pigments Fail

Organic blue pigments typically degrade at processing temperatures above 250–300°C, limiting their use in engineering plastics and ceramic-related systems. Some inorganic alternatives lack sufficient chemical resistance or color stability under acidic, alkaline, or outdoor exposure conditions, leading to fading or surface defects.

PB28 Cobalt Blue Pigment as a Material-Level Solution

PB28 Cobalt Blue is based on a cobalt aluminate spinel crystal structure, which provides intrinsic thermal stability and chemical inertness. As an inorganic pigment, PB28 maintains consistent color performance under high-temperature processing and harsh chemical environments, making it suitable for demanding industrial and ceramic applications.

Key Performance Advantages

• Excellent thermal stability for processing temperatures above 300°C
• Strong resistance to acids, alkalis, and organic solvents
• Outstanding weather resistance for outdoor and architectural use
• Stable spinel crystal structure ensures long-term color consistency

PB28 for Ceramic Ink and Fine-Dispersion Systems

For ceramic ink and fine-coloration systems, PB28 Cobalt Blue can be supplied with controlled particle size distributions suitable for sub-micron dispersion. This enables stable ink formulation, reduced sedimentation risk, and smooth printing or coating performance without relying on nano-grade classification.

Typical Application Scenarios

• High-temperature industrial and architectural coatings
• Plastic masterbatch and engineering plastics requiring color stability
• PVC, UPVC, and outdoor polymer products exposed to UV and chemicals
• Ceramic inks, ceramic decoration, enamel, and glass coloration

When to Choose PB28 Cobalt Blue

PB28 Cobalt Blue is recommended when long-term color stability, chemical resistance, and high-temperature performance are required. It is particularly suitable for applications where organic pigments or low-grade inorganic blues fail to meet durability or processing demands.

Technical Support and Application Guidance

Our technical team provides formulation guidance, pigment selection support, and application-specific recommendations for plastics, coatings, and ceramic systems.

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Kela Materials presents Cobalt Green (PG505A), a high-purity inorganic green pigment engineered through high-temperature calcination to deliver exceptional color stability and thermal resistance up to 1000°C.

Also known as cobalt-titanium green or “Green 50,” PG505A offers a brilliant yellow-tinted green shade with strong saturation and excellent dispersion in multiple systems.

The pigment provides outstanding resistance to weathering, acids, and alkalis, while its high infrared reflectance makes it suitable for energy-saving and heat-management coating applications. PG505A is environmentally safe and completely non-toxic.

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