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.
• 100% cobalt-free, aluminum-free, and barium-free formulation
• Exclusive Kela Materials manufacturing technology (no other supplier offers this grade)
• Deep, clean black shade with excellent color strength
• Superior heat resistance and thermal stability
• Strong weatherability and UV resistance for long-term outdoor use
• High chemical resistance; non-bleeding and non-migrating
• Excellent dispersion in plastics, coatings, and rubber systems
Application area
Engineering plastics, plastics and rubber products, high-temperature coatings, industrial coatings, ceramic coloration, environmentally safe pigment systems, and applications requiring cobalt-free and barium-free compliance.