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Corroless ACO Spray Grade

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£592.08 Tax incl.

Corroless ACO Spray Grade is a high build, solvent free, two pack polyurethane coating for spray application onto steel pipes and field joints.

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Corroless ACO Spray Grade is a high build, solvent free, two pack polyurethane coating for spray application onto steel pipes and field joints.


  • Outstanding physical properties in terms of flexural strength, tensile strength, impact and abrasion resistance
  • Use for the protection of steel and concrete structures in aggressive environments e.g. internal and external protection of pipelines, field joints, offshore splash zones, bridge protection, chemical plants.

Surface Preparation

  • All surfaces to be coated should be dry and cleaned as necessary to remove all oil, grease, salts, weld flux or other contamination. Where necessary, remove weld spatter and grind smooth all sharp edges and weld seams
  • Steel: blast clean to minimum Sa2½ (ISO 8501-1:2007), surface profile depth 75-100µm. Mechanical tools may also be used providing a profile of minimum 75µm. Do not polish the steel surface.
  • Concrete: remove all laitance and other contaminants by most appropriate methods. Ensure the concrete is dry to a reading of <16% on the Wood Moisture Equivalent (WME) scale. Prime with Corroless ACO LV Sealer


Twin feed equipment required


Do not thin 


Axalta Thinner Fast Industrial TH120 (formerly called No.4 Thinner)

Application Conditions

Do not apply when rain, mist, sleet or snow are imminent. Normal application requires relative humidity below 80%. To avoid risk of condensation, application should be performed only when the steel surface temperature is at least 3°C (5°F) above the dew point. Application at temperatures below 1°C (33°F) must be carefully monitored, since the possible presence of ice on the surface (or in pores, in the case of concrete) will result in poor performance.

Application Method

  • Twin component hot airless spray required with instant purge capability due to very short pot life.
  • Note that the use of the Sulzer cartridge spraying system or other low-pressure spraying systems is not permitted for Drinking water applications requiring WRAS approvals

Product Notes

  • Activator contains isocyanates – refer to Safety Data Sheet.
  • Overcoating - normally after 1 hour and within 24 hours of initial application. Abrading will be required if overcoating after 24 hours.
  • In-service temperature limits: Wet – 0 oC to 70oC depending on solution; Dry – minus 20oC to + 120oC continuous
  • A minimum cure time of 14 days at 7oC is required before contact with drinking water
  • Curing rate will be retarded below 10 oC
  • Backfilling or immersion can normally be carried out as soon as the coating is Hard Dry 
  • Spark/Holiday testing: maximum 5KV after the coating is hard dry 
  • Corroless ACO Spray Grade has excellent adhesion to abraded Fusion Bonded Epoxy (FBE), and suitably prepared 3LPE and 3LPP.

Data sheet

Cream & Grey
0.2 m2 /litre at 5mm DFT/WFT
2.0 m2 /litre at 0.5mm DFT/WFT
For Use On
steel pipes and field joints.
Application Method
Recoat Time

Specific References

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Corroless ACO Spray Grade

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Corroless ACO Spray Grade

Tax excluded
£592.08 Tax incl.