Power Infrastructure
Anti-Corrosion Fittings — Thermal Diffusion Coating
For severely corroded environments, ZTT applies a thermal diffusion coating (GREENKOTE) instead of, or in addition to, hot-dip galvanising. Zinc and aluminium particles diffuse into the steel surface to form an aluminium-rich alloy layer that resists salt spray up to 4000 hours, holds a coating-thickness tolerance of ±5 μm, presents no risk of hydrogen embrittlement, and offers super adhesion and wear resistance.
Features & Characteristics
- ▪Thermal diffusion (GREENKOTE) Zn-Al coating diffused into the steel base.
- ▪Salt-spray resistance up to 4000 hours.
- ▪Coating-thickness tolerance ± 5 μm.
- ▪No risk of hydrogen embrittlement.
- ▪Super adhesion and super anti-wear capability.
Applications
- ▪Coastal, offshore and salt-laden overhead line hardware.
- ▪Heavily industrialised and chemically corroded environments.
- ▪Long-service-life projects where standard hot-dip galvanising is insufficient.
Technical specifications
- Coating technology
- Thermal diffusion Zn-Al alloy (GREENKOTE)
- Salt-spray resistance
- Up to 4000 h
- Coating thickness tolerance
- ± 5 μm
- Hydrogen embrittlement risk
- None
- Applicable base standards
- ISO 1461, ASTM A90, ASTM A153, IEC 60383
- Applicable to
- Suspension clamps, tension clamps, spacers, dampers, link fittings and other line hardware
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