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Pigments
Kela Materials offers a portfolio of high-performance inorganic pigments, including cobalt blue (PB28), copper chromite black (PBk28), and custom ceramic pigments. Our pigments are designed for plastics, coatings, ceramics, and high-temperature applications, delivering excellent thermal stability, chemical resistance, and color consistency. What types of pigments do you offer? We specialize in inorganic pigments such as cobalt blue (PB28), copper chromite black (PBk28), and ceramic pigments
CCerium Sulfide Orange Pigment — Inorganic orange pigment for high-temperature plastics

Short answer: Cerium sulfide orange is an inorganic rare-earth sulfide pigment used to generate orange coloration in systems exposed to high processing temperatures. It fits plastics and specialty materials where organic orange pigments lose stability. Its color expression depends on crystal integrity and dispersion quality, and it is not an organic dye or iron-oxide pigment.

Kela Transparent Cobalt Blue Pigment – High-End Cobalt Aluminate (CoAl₂O₄, PB28)
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
Bismuth Vanadate – Transparent Yellow Pigment for high-chroma coatings and plastics

Short answer: Bismuth vanadate transparent yellow is an inorganic pigment used to provide bright yellow coloration with controlled transparency in coatings, plastics, and inks. It fits applications requiring clean chroma and color stability without heavy-metal pigments. Its optical behavior depends on particle engineering and dispersion, and it is not a dye or an organic colorant.

Kela Cobalt Chrome Blue – PB117 High-Stability Spinel Blue Pigment
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.
科莱-钛铬棕
钛铬棕具有金红石型结构耐温度高达1000℃,钛铬棕的黄相较为明显,所以其经常作为黄色颜料使用。钛铬棕中的铬和锑均已牢固地结合在二氧化钛的晶格结构上,无金属离子溶出,属于无毒环保颜料。遮盖力较好,但着色力稍差。颜料颗粒的硬度较大,研磨分散时需注意对介质材料的影响。耐光性,耐候性,耐温性及化学稳定性都很好,可用于对各项性能要求较高的涂料或塑料制品中。钛铬棕与大多数热固性和热塑性树脂相容。具有红外反射功能,可用于制作隔热涂料或作其它特殊用途。钛铬棕可看作是钛镍黄的类似产品,亦属于金红石晶格结构的一种颜料,因其用铬替代镍,所以产品呈棕色,故其性能同钛镍黄十分相似。 用途: 可用于卷钢涂料、粉末涂料、运输工具涂料、户外建筑涂料、伪装涂料、绘画涂料、路标涂料以及工程塑料,一般塑料,塑料玩具、食品包装塑料、印刷油墨、色母粒、高性能工业涂料、用于水泥,混凝土,屋面材料等建材,以及陶瓷等。
Copper Chrome Black Pigment – Cobalt-Free, Aluminum-Free, Barium-Free PBK528

Short answer: Copper chrome black pigment is an inorganic spinel-type oxide pigment used to produce stable black coloration in high-temperature and chemically demanding systems. It fits plastics, coatings, and ceramic coloration where organic blacks are unsuitable. Its performance depends on crystal structure and dispersion quality, and it is not a carbon-based or organic black pigment.

Kela Cobalt Violet – PV514A High-Purity Inorganic Purple Pigment

Short answer: Kela Cobalt Violet (PV14A) is an inorganic violet pigment produced from cobalt phosphate through high-temperature calcination. It provides clean violet coloration with good thermal and chemical stability in plastics, coatings, and ceramic systems. Its color performance depends on crystal structure and dispersion quality, and it is not an organic dye or carbon-based colorant.

High-Purity Bismuth Vanadate Pigment — Inorganic yellow pigment with clean chroma

Short answer: High-purity bismuth vanadate pigment is an inorganic yellow pigment used to deliver bright, clean yellow coloration in coatings, plastics, and inks. It fits applications requiring color stability and regulatory-friendly alternatives to lead or cadmium pigments. Its optical performance depends on particle engineering and dispersion quality, and it is not an organic dye or carbon-based colorant.

Cerium Sulfide Red Pigment — Inorganic red pigment for high-temperature applications

Short answer: Cerium sulfide red is an inorganic rare-earth sulfide pigment used to produce red coloration in plastics and other high-temperature systems. It fits applications where organic red pigments cannot withstand processing heat. Its performance depends on crystal stability and dispersion, and it is not an organic dye or iron-oxide red pigment.

PB28 Cobalt Blue Pigment — High-temperature inorganic blue pigment

Short answer: PB28 Cobalt Blue is an inorganic blue pigment based on a cobalt aluminate spinel structure. It is used where stable blue coloration is required under high processing temperatures and harsh environments. It fits plastics, coatings, ceramics, and glass systems. Its color performance depends on crystal integrity and dispersion quality, and it is not an organic dye or carbon-based colorant.

Cobalt Green – PG505A High-Purity Inorganic Green Pigment
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.
Copper Chrome Black Spinel – PBk28
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.

Copper Chrome Black Spinel – Pigment Black 28 (PBk28) is an inorganic black pigment from Kela Materials based on copper chrome spinel (CuCr₂O₄). It provides a deep black shade with excellent heat, UV and chemical resistance for durable plastics, coatings, ceramics and construction materials. PBk28 contains only trivalent chromium (Cr³⁺) fixed in a stable spinel lattice and no hexavalent chromium (Cr(VI)).

科莱-钛镍黄
钛镍黄在化学上相当稳定,对强酸强碱及强氧化剂和还原剂都具有很好的稳定性。 钛镍黄中的锑、镍和氧化钛在高温下生成稳定的共晶的固熔体,化学性质呈现惰性,即使在强酸、强碱的环境下,也不会析出有毒的游离金属离子,是无毒的环保颜料。可以安全地应用在玩具塑料及食品包装材料中。 各种天然曝晒和人工加速耐候试验都显示出钛镍黄的耐候性和耐久性都比金红石型钛白粉要好,钛镍黄各项综合性能非常优异,适用于对各种稳定性要求较高的树脂或者涂料体系。钛镍黄还具有红外反射功能,可用于制作屋顶涂料和隔热材料。 推荐用途:钛镍黄可用于一般塑料,玩具塑料、食品包装塑料、印刷油墨、色母粒、高性能工业涂料、绘画涂料、路标涂料以及用做氟碳材料着色剂。
PBK526 Eco Composite Functional Black

PBK526 Eco Composite Functional Black is a composite inorganic black pigment developed by Kela Materials. It is primarily based on mixed oxides of copper (Cu), manganese (Mn), and iron (Fe), designed to deliver a purer, more stable black tone than many organic blacks or conventional carbon-based blacks in demanding processing environments.

This material is positioned for engineering use cases where thermal stability, process robustness, and color retention matter. PBK526 is not presented as a finished formulation; performance depends on binder/resin selection, dispersion method, film thickness, and processing temperature profile.

Typical value proposition: stable black appearance under heat and aging, with system-level predictability when carbon black introduces conductivity drift, blooming, or tone instability.