Facebook Apexior 1 - Hot Water Side Boiler Coating
Specialized Coating Systems

Apexior 1


Hot water side boiler coating 370°C. Apexior 1 is a single component, solvent-based, air-drying organic type coating. It is easy to apply and is specifically formulated for the hot water-side corrosion prevention of metal surfaces.

Intended Uses


Apexior 1 is a coating that excels in severe thermal cyclic immersion service and is resistant to continuous immersion in boiling water and steam from 100°C to 370°C.

It aids in the reduction and prevention of tight bonding of hard scale and allows for easy cleaning and removal of any scale build up in steam generating equipment.

Apexior 1 prevents pitting corrosion and stops corrosion that has already begun - except for badly pitted areas. It has outstanding wetting properties and adheres well to power tooled cleaned areas.

Equipment coated with Apexior 1 will also see an increase in heat transfer efficiency. Apexior 1 performs ideally with water treatment in steam generating equipment.

Apexior 1 Protects Hot Water Surfaces Of:

  • Steam generating equipment.
  • Hot condensate return tanks.
  • De-aerators.
  • Hot process tanks.
  • Autoclaves, sterilizing equipment.
  • Heat recovery system.
  • Mud and steam drums.
  • Steam traps.

Not Recommended For:

  • Hot water tank service with average operating temperature below 90°C unless heat cured.
  • Immersion in solvents or acids.
  • Interior boilers held for long periods in cold wet layup or standby service.

Properties & Characteristics


  • Air dries, easy to apply.
  • Excellent wettability properties.
  • Easily re-coatable.
  • Resistant to boiling water/steam to 370ºC.
  • Increases heat transfer efficiency.
  • Outstanding resistance to thermal shock (immersion).
  • Inert to water treatment chemicals.
  • Prevents corrosion in standby service.
  • Prevents scale build up.
  • Surface tolerant features – requires minimal preparation.