Product Description

Glass Fused to Steel Tanks

Vitreous enamel coating, also known as glass fused to steel (GFS), is a silica‐based fused coating that is widely used as a corrosion resistant protective coating in the water and wastewater industry.

The term vitreous enamel comes from the word vitrification describing the transition of a substance into a glass. At typical vitreous enamel firing temperatures, usually in the range of 830‐850°C, the coating reaches full mobility and viscosity.

During this period, interaction between the glass and steel accelerates, an interfacial adhesion layer is formed and synthesis of the two materials takes place.

Balmoral’s enamel system combines the strength of steel with the corrosion and scratch resistance of glass.

Compared to other spray application methods, which often use inorganic clays to suspend the particles in water, enamel powder coating provides the proven optimal purity. This technical advantage combined with Balmoral’s process represents a new level of excellence in glass fused to steel tanks and silos.

  • Balmoral’s enamel system provides optimum purity
  • Tough resilient coating
  • A composite with the strength and flexibility of steel
  • Chemically inactive coating and unaffected by UV light



Balmoral GFS Tanks

Balmoral’s manufacturing process was designed to provide clients with a high performing, economical coating designed specifically for the containment of potable water and uncovered municipal wastewater tanks.


Balmoral GFS Premium

The Premium option was developed to deliver heightened performance and long­term value to asset owners and users around the world in more demanding applications.


Features and Benefits

  • Unique and coveted glass formulation using bespoke ingredients: New level of excellence in glass enamel coating technology.
  • Unique ‘dry’ electrostatic application: Optimal purity.
  • Increased coating coverage: Less reliance on in-field solutions.
  • Meets and exceeds coating requirements of EN ISO 28765: Confidence in coating quality and performance.
  • Modular system: Fast, efficient construction.
  • Factory applied coating under Balmoral’s unique 6S quality system: Consistent and regulated quality wherever the tank is shipped and built.
  • No re-coating requirement: Long life coating requiring minimum maintenance
  • Designed and specified not to corrode: Zero corrosion allowance required reducing unnecessary material and cost.
  • High performing coating: UV stable, abrasion resistance increases life span and minimises through life maintenance.




  • Agricultural digesters
  • Borehole/brackish/seawater
  • Dry bulk solids
  • Fire water storage
  • Filter tanks
  • Industrial effluent/aeration processing
  • Liquid leachate
  • Municipal sludge storage
  • Municipal sludge treatment
  • Municipal mesophilic digesters
  • Municipal sludge cake storage
  • Potable drinking water
  • Municipal mesophilic digesters
  • Municipal sludge cake storage
  • Potable drinking water
  • Storm water
  • Thermophilic digesters


For more details, visit our website or consult our technical brochure.

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