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How It Works

Electrochemical etching starts by creating an image with a stencil. The image is then transferred to the metal surface with electrolyte and electric current. The process produces sharp, clean impressions without stress, damage or distortion.

The Electromarking Process

1

Clean Surface

Prepare the metal surface by cleaning it thoroughly with a neutralyte to remove oils, dirt, and oxidation.

2

Position Stencil

Place your custom or standard stencil firmly on the cleaned metal surface. Tape it down to keep it in place.

3

Apply Electrolyte

Apply the appropriate electrolyte solution to the pad used on the marker.

4

Apply Current

Press the marker to the stencil for 2-5 seconds. The current creates the permanent mark or etch.

AC vs DC Marking

AC Marking

Alternating Current

What It Does

AC current creates a dark or contrasting mark with a shallow etch depth of 0.0001" to 0.0002". During the marking cycle, oxide is deposited on the surface, creating a corrosion-resistant, permanent mark.

Best For

  • • Logos and branding
  • • Text and serial numbers
  • • High-contrast dark marks
  • • Knife maker marks
  • • Quick identification marking

Characteristics

  • • Dark black surface mark
  • • Faster marking process (2-3 seconds)
  • • Minimal depth penetration
  • • Excellent visibility

DC Etching

Direct Current

What It Does

DC current creates a deep etch ranging from 0.0001" to as deep as 0.010". Metal is completely removed during the marking cycle, leaving a clear or etched mark that is permanently etched into the metal surface.

Best For

  • • Permanent serial numbers
  • • Compliance and regulatory marking
  • • Deep identification marks
  • • Parts requiring maximum durability
  • • Aerospace and automotive applications

Characteristics

  • • Frosted, etched appearance
  • • Deep marking (up to 0.010")
  • • Longer marking time (4-6 seconds)
  • • Maximum permanence

Safety & Best Practices

Safety First

  • • Always wear appropriate PPE including gloves and eye protection
  • • Ensure proper ventilation when working with electrolytes
  • • Keep electrolytes away from skin and eyes
  • • Follow manufacturer guidelines for electrical safety
  • • Store electrolytes in proper containers away from children

Best Practices

  • • Clean the surface thoroughly with neutralyte before marking for best results
  • • Use the correct electrolyte for your metal type
  • • Apply consistent pressure during marking
  • • Test on scrap material before marking final parts
  • • Clean and neutralize the marked area after processing

Common Mistakes to Avoid

  • • Using too much or too little electrolyte
  • • Insufficient surface cleaning
  • • Applying uneven pressure
  • • Using the wrong electrolyte for the metal type
  • • Not allowing proper contact time

Frequently Asked Questions

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