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Laser marking of metal surfaces (names of useful pastas)

The Endurance 20 Watt (20000 mW) 445 nm double-beam laser add-on (attachment) for a 3D printer,  a CNC machine and an XY plotter

Everything you need to know about laser marking (etching) using an Endurance 20 watt (20000 mW) 445 nm double-beam laser attachment.

First of all I want announce that engraving on metals is possible with a 20 watt continous visible 445 nm laser attachment.
The second positive thing is that the process is quite simple.

Just cover the surface with engraving pasta and you are all set. Engrave and enjoy!

Now with a 20 watt laser you may mark on any metalic surfaces: stainless steel, aluminum, brass and copper.
For laser etching we use special engraving pasta (analog of Cermark LMM-6000).

Average parameters for laser marking

Material Amount of repeats Speed in g-code Special conditions
Stainless steel 3 5
Aluminum 5 5 polished and sanded
Brass 3 10 polished
Copper 3 10 polished

Was made using a 20 watt double beam laser

Learn more about a 20 watt double beam laser.


Recommended pastas and chemicals for laser etching (marking)

Cermark LMM-6000

Pure alcohol


PVA glue

Aluminox Solutions,


Litoscript metal black

Grout white for marble


We plan to make more experiments with different chemicals, such as: Lube with Molybdenum-disulfide (MoS2) and others.

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