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Apexior 1

Hot Water Side Boiler Coating 370°C. Apexior Number 1 is a single component, easy to apply, air drying coating specifically formulated for the hot water-side corrosion prevention of metal surfaces. It is a coating that excels in severe thermal cyclic immersion service. Apexior number 1 is resistant to continuous immersion in boiling water and steam from 200°F (93°C) to 700°F(371°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 Number 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 Number 1 will also see an increase in heat transfer efficiency. Apexior Number 1 performs ideally with water treatment in steam generating equipment.

Intended Uses

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


  • Air dries, easy to apply
  • Excellent wettability properties
  • Easily re-coatable
  • Resistant to boiling water/steam to 700°F
  • Increases heat transfer efficiency
  • Outstanding resistance to thermal shock (immersion)
  • Inert to water treatment
  • Prevents corrosion in standby service
  • Prevents scale build up
  • Surface tolerant features