Enquiries 07 3375 4200


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


NGI Closure

NGI will cease trading at Freeman Road, Richlands on Monday 7th January 2019. read more

Christmas and New Year Trading Hours

CLOSED: Friday 21 December 2018 (12pm) - REVISED OPENING DATE: Wedneday 2 January 2019 (6.00am). 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.

Learn more...