MIL-C-14460 C Type I (A-A-59260 /AMS-1379A) Corrosion Removing Compound, Sodium Hydroxide Base for Electrolytic or Immersion Application


Product Information


MIL-C-14460 C Type I  is a powder, alkaline corrosion-removing compound suitable for rust removal by simple immersion of the article or by electrolytic action without causing material change in the dimensional characteristics of the treated article.

MIL-C-14460 C Type I  meets the requirements of specifications, MIL-C-14460 TYPE I, A-A-59260 and AMS-1379A TYPE II (powder).


MIL-C-14460 C Type I effectively removes rust, oil, grease, carbon, scale, paints and is mainly used for:

  • rust, carbon, oil, grease and paint removal in one operation.
  • heat scale conditioning for aircraft engine compounds.
  • processing steel prior to phosphating
  • processing magnesium prior to DOW coating.
  • preparation of cast iron and steel in electrolytic tank, prior to plating.
  • Any application where an alkaline, corrosion, rust and paint remover is required.


MIL-C-14460 C Type I is used in dip tanks.

The immersion time depends on the amount of soil to be removed but generally a 15 - 60 minutes immersion time is sufficient to remove the most soil.

Air or mechanical agitation of the solution reduces the immersion time.

It is safe on ferrous, magnesium, titanium and stainless steel but should not be used on aluminium, tin, zinc and their alloys.

Recommended concentration and temperature limits

Rust, carbon and paint removal: 15 – 40% in water at 90o – 100oC. Heat scale conditioning: 25 – 40% in water at 90o – 100oC. Titanium cleaning: 5 – 7% in water at 70o – 75oC.

Magnesium cleaning: 3 – 4% in water at 90o – 100oC.

Tank construction

Tank may be constructed of mild steel with stainless (type 316) heating unit.

Directions for electrolytic use

Recommended concentration: 6 –20% in water at 85-95oC. Voltage: 6-8 volts.

Amperage: 10 – 25 Ampere per dm2

Fast results are obtained by a short anodic cycle (30-60 seconds) followed by cathodic cycle for remainder of immersion time.

To keep hydrogen embrittlement within acceptable limits, a 30 seconds cathodic cycle followed by 60 – 120 seconds anodic cycle, repeated until parts are clean, is recommended.


The rinsing should be done either by overflowing, agitated water rinse (preferably hot), hot or cold water with pressure or with a steam cleaner.

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