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Galfan Coating
ZGF 275

Expected Life
Expectancy

Time to first
Maintenance

Good
Drainage

Environment
Harshness

C1: Very Low
100 years +

C2: Low
100 years +

C3: Medium
50 years +

Special Environments

Conditions in certain locations may affect the lifespan of your gabions.


Geothermal Areas

Hydrogen sulphide associated with geothermal activity creates a corrosive environment.

West Coast, South Island

The combination of smoke from fires and high rainfall creates an aggressive environment.

Coastal Environment

Light salt deposits and a frequent smell of salt may extend inland by prevailing winds.

Industrial Environments

Corrosive industrial emissions subject to heavy fallout can affect gabion lifespan.

Acidic Soils

Separate soil and corrosive groundwater with geotextile fabrics and drainage systems.

Galvanisation

Galfan serves as a sacrificial anode, so exposed steel does not rust while the ZnAl is present.

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August 2015