Services / Zinc Whisker Remediation
Zinc whisker
identification
and remediation.
Most facilities do not know they have zinc whiskers until hardware starts failing without explanation. We identify the contamination, contain the affected area, and remediate without redistributing particles through your airflow system.
2μm
What are zinc whiskers?
Zinc whiskers are microscopic crystalline structures that grow spontaneously from electroplated zinc surfaces, typically raised access floor tiles and structural components including pedestals and stringers installed before 1995. They are typically 2 microns in diameter and can grow to several millimetres in length over many years.
When disturbed, they become airborne. Even CRAC airflow is strong enough to dislodge and distribute zinc whisker particles throughout a data centre. Once airborne, they are drawn into equipment through cooling inlets and settle on circuit boards and inside power supplies, where they cause intermittent short circuits that are frequently diagnosed incorrectly as software or hardware faults.
There are two types of zinc-plated floor tiles. Electroplated zinc tiles are the problem. Hot-dipped galvanised tiles are not affected. If your facility uses electroplated zinc raised floor infrastructure installed before 1995, zinc whiskers are a realistic contamination risk that requires specialist assessment.
Priority Data Services, Brisbane, QLD
01
Facilities with
Pre-1995 Raised Floors
Electroplated zinc floor tiles installed before 1995 are the primary risk source. The whiskers grow slowly over many years without causing any detectable problem until they are disturbed. Long-undisturbed facilities carry the highest accumulated risk.
Age dependent
02
Facilities Undergoing
Expansion Works
The highest-risk moment for zinc whisker release is when subfloor barriers are removed during facility expansion. One documented case saw multiple power supply failures in a live data centre within minutes of the barrier being removed, after years of undisturbed whisker growth in the adjacent space.
High-risk moment
03
Facilities with
Unexplained Failures
Intermittent power supply failures, hardware faults that cannot be reproduced, and short circuits with no clear cause are all consistent with zinc whisker contamination. If your maintenance logs show a pattern of unexplained equipment failures, contamination should be assessed before replacing more hardware.
Diagnostic indicator
04
High-Density
Environments
High airflow environments used in high-density computing accelerate the distribution of whisker particles once they become airborne. The more airflow, the faster contamination spreads across the facility.
Airflow risk