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Hot dip galvanising is the process by which iron and steel can be treated to prevent rusting. In essence it involves dipping the article with a chemically clean surface into a bath of molten zinc which reacts with the iron and forms a coating.

We offer a full range of hot dip galvanising services from processing structural steel and fabricated sections to centrifuging small components.

  • Hot caustic degreasing
  • Hydrochloric acid pickling
  • Rinsing
  • Prefluxing in zinc ammonium chloride
  • solution
  • Hot dip galvanising
  • Quenching


Australian Steel Institute Award Winning Project 2016

National Galvanising Industries was part of the project team involved in the Sunshine Coast University Hospital Carpark which picked up the 2016 Award… read more

Venting and draining – latest update from GAA

It is important to consider the corrosion protection of ferrous articles when they are being designed. This guide provides general information on… read more



National Galvanising Industries is an Australian owned and operated business.

In 2007, the Cliplyn Group of Companies, a family business, acquired the galvanising facility from the John Holland Group.

The facility has, for over three decades, supplied hot dip galvanising services to many customers in South East Queensland and Northern New South Wales. We service industries including oil, gas and chemical sectors; mining and mineral processing; materials storage and handling; metal refinery and smelting; power generation; infrastructure projects; commercial; industrial and general construction.

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