Laser Marking Steel – the dry moly lube way

After finding out about this channel, and watching a few of his videos, I happily found out that there is a cheaper alternative to Cermark (which is about 100 euro where I am based for 300ml). The alternative is DM-90 Dry Film Molybdenum Disulphide Lubricant. And the really good news is, that it’s only about 12 euro for 500ml. So I decided to try it out.

Sadly I didn’t have a lot of flat steel worthy of engraving in the workshop, but a HDD cover worked for the first test. Here’s what I did:

  • Clean surface with paint thinner
  • Apply a coat of DM-90
  • Wait until it dries a bit (surface is matte)
  • Apply a second coat
  • Wait again
  • Laser etch
  • Clean with paint thinner

I tried 40, 50, 100 and 200mm/s at 35% power (about 18mA on a 40W tube). The results, in my opinion were remarkable. After cleaning it up and calming down, the next thing I did was take a screw driver and try to damage the etching. Surprisingly it barely had any effect as you can see:

We were in business now, so I started looking for the next thing to engrave. My eyes fell on my workshop buddy’s Swiss Army Knife. He decided on the Iron Cross.

Next I did my caliper. Of course, the oily caliper I forgot to clean with paint thinner… So the spray didn’t bond as well to the surface in some areas…

Next, are some awesome knives from a friend who is a knife ‘enthusiast’. You can check out his channel here. So stay tuned for those.


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2 Responses

  1. sNap says:

    Cool stuff!

  1. October 27, 2016

    Free Piano

    Wow, awesome blog structure! How long have you been blogging for? you made blogging look easy. The entire glance of your website is magnificent, as neatly as the content!

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