Zinc Whiskers: The Hidden Contamination Risk Beneath Data Center Floors

Zinc whiskers are microscopic, electrically conductive crystalline filaments that grow from electroplated zinc surfaces commonly found in older data center raised-floor tiles and other legacy infrastructure components. When these whiskers detach and become airborne through cooling airflow, they can settle on circuit boards and create unintended conductive paths that lead to equipment failures. As data centers increasingly adopt high-density AI infrastructure that moves significantly more air than traditional computing, this contamination risk becomes more serious because greater airflow carries whiskers toward equipment more readily. The problem is difficult to identify without proper inspection, and routine maintenance activities like moving floor tiles or cleaning can actually worsen the situation by disturbing whiskers and spreading them through the facility.