Apexior No 1

A two-component black bitumen coating that provides excellent anti-corrosive protection for 'Hot-Wet' metal surfaces subjected to very high temperatures.

Berger Apxior No 1 is an anti-corrosive coating for boiler drums, tubes, evaporators and other equipment subjected to temperatures between 93º C and 540º C. It has low permeability to moisture and steam, and has excellent water repellence and anti-corrosive performance. It is resistant to weathering, oxidation, and mild acids and alkali solutions. It can be applied easily by brush, roller or spray. It is suitable for surfaces that come in contact with fresh or salt water.


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Water ResistantCorrosion ResistantChemical Resistant
Finishes -Matt

Surface preparation


  • Remove all wax, oil and grease by solvent cleaning in accordance to the guidelines given by SSPC-SP1.
  • Ensure that freshwater jetting is carried out to remove all loose contaminants and soluble salt deposition.
  • Remove scales by chipping, with a needle gun or by spot blasting. Any loose or flaking coatings should be removed to create a firm edge.
  • Mechanically clean the surface using hand or power tools to a minimum standard of St 2 (ISO 8501-1:1988) or SSPC-SP2, taking care to avoid polishing the surface.
  • Where necessary, remove the weld spatter and round off all rough weld seams and sharp edges to create a smooth surface.


• Ensure that the surface is sound. Remove laitence by thorough wire-brushing, acid etching or sweep blasting. Blowholes and other defects should be filled with Solventless Epoxy Filler.

Application procedure

Stir the contents of the can thoroughly before use. Thinning is not usually required. However, if thinning is desired, do not exceed the recommended thinning ratio.

Tools you can use


May be used for difficult shapes or touch up purposes

Airless Spray

Conventional Spray

May require additional dilution to achieve good atomisation.


May be used for difficult shapes or touch up purposes

Available Packs


1 Coat
10 Sqm/ L @ 40 microns**


On well-prepared surfaces, as per the painting system recommended. Please refer to the Product Data Sheet for surface preparation and method of application.

** Actual coverage may vary from the quoted coverage due to factors such as method and condition of application, surface roughness, and porosity.

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    Apexior No 1
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