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Which Is Used to Mark a Metal Permanently?
Permanent metal marking is critical for part identification, traceability, and branding.
The most effective permanent marking methods for metal include laser engraving, dot peen marking, stamping, and specialized industrial markers.
Let’s look at the tools and techniques professionals use to make marks that last a lifetime — not just until the next polish.
What is the best permanent marker for metal?
Looking for a quick way to write on metal that won’t rub off?
The best permanent markers for metal are industrial-grade paint markers like Sharpie PRO, Markal, or Sakura Solid Marker.
Top choices for long-lasting ink-based metal marks:
| Marker Brand | Type | Durability | Best Use Case |
|---|---|---|---|
| Sharpie PRO | Industrial ink | Moderate | Indoor marking |
| Markal Paint Marker | Oil-based paint | High | Fabrication and layout work |
| Sakura Solid Marker | Solidified paint | Very High | Outdoor, oily or rough metals |
These are ideal for temporary identification during Prime's CNC零件精准加工 and 焊接装配流程, but not for permanent traceability — which brings us to more advanced solutions.
How to permanently mark on metal?
Need something that lasts through wear, corrosion, and time?
To permanently mark on metal, use laser engraving, dot peen marking, stamping, or chemical etching.
Permanent metal marking methods:
- Laser engraving: High-precision, clean, non-contact.
- Dot peen marking: Pneumatic or electric stylus creates indents in metal.
- Stamping: Hammered steel dies imprint numbers or letters.
- Chemical etching: Acid-based method using a stencil.
| Method | Permanence | Surface Impact | Common Use |
|---|---|---|---|
| Laser engraving | ⭐⭐⭐⭐⭐ | Minimal | Serial numbers, logos |
| Dot peen marking | ⭐⭐⭐⭐ | Moderate | ID codes, rough parts |
| Metal stamping | ⭐⭐⭐⭐ | High | Logos, batch marks |
| Chemical etching | ⭐⭐⭐⭐ | Low | Fine detail artwork |
At Prime, we use fiber laser engraving on ISO-certified magnesium, aluminum, and steel parts, ensuring every component is traceable and professional.
How to mark items permanently?
Whether it’s tools, parts, or equipment — permanent ID is critical.
You can mark items permanently using metal stamps, laser engravers, or heavy-duty industrial labels resistant to heat and chemicals.
Marking tips by item type:
- Tools: Use metal stamps or dot peen to avoid rubbing off.
- Outdoor gear: Use UV-resistant laser engraving or epoxy paint tags.
- Industrial parts: Laser or dot peen marking integrated during production.
| Marking Method | Recommended For | Benefits |
|---|---|---|
| Metal stamping | Tools, hand equipment | Durable, low-tech |
| Laser engraving | Components, instruments | Clean, readable, fast |
| Industrial labels | Machinery, electrical panels | Easy to apply, replaceable |
Just like Prime integrates part numbers directly into custom stamping parts and casting components, you should choose permanent solutions built to match the durability of the item itself.
What tool is used as a permanent marker for metals?
Forget Sharpies — industrial jobs need industrial solutions.
The most reliable tool for permanent metal marking is a laser engraver, followed by dot peen machines and steel stamping kits.
Professional tools for permanent metal marking:
- Laser Engraving Machine: Uses focused light beam to etch surface
- Dot Peen Marker: Creates micro-indents in a programmed pattern
- Stamping Kit: Manual or hydraulic press with steel dies
| Tool | Level of Precision | Permanence | Automation Ready? |
|---|---|---|---|
| Laser engraver | Very High | Permanent | Yes |
| Dot peen marker | High | Permanent | Yes |
| Steel stamps | Medium | Permanent | No (manual only) |
At Prime, we use laser and dot peen machines to permanently mark parts for aerospace, medical, and defense applications, ensuring long-term traceability and compliance with global quality standards.
Suggested visual:
Prime’s laser engraving system in action — creating serial codes on CNC magnesium parts
Conclusion
For permanent metal marking, laser engraving and dot peen are the most precise and reliable tools, with industrial paint markers as a temporary solution.
Need professionally marked magnesium components built to last? Contact Prime today! We offer ISO-certified custom processing, laser marking, and fast global delivery — send your inquiry now for expert consultation and a free quote!
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