Possible to etch brass?

Laser
1

Is this possible? It’s not listed in the items to etch, but just wanted to ask…

2

CO2 laser won’t etch it, but can remove finishes from it.

3

Something like Ceramark can be used. It is a coating that the laser can fuse to the metal surface:

http://www.laserbits.com/sus-030-metal-marking-spray-can-12oz.html

4

Reflections off of any shiny (i.e., uncoated) metal will damage the laser optics.

However, if you coat the brass (using, for instance [Cermark] then you can “etch” the Cermark-coated surface. In reality, this will produce a permanent black marking on the brass.

Be cautious that not all Cermark products will mark brass (specifically, the most common Cermark spray LMM6000 will not) . Cermark specifically recommends their LMM14 product.

5

Kevin, while Laesrbits is a great place for laser supplies, that specific Cermark product will not work on brass. He needs the LMM14 product.

6

So for instance could I use the same SUS 030 - CerMark LMM-6000 to get black etching on aluminum as well?

7

I use LMM14 Cermark on Steel, alum, and brass with no issues.
50 watts of power and 20% of speed at 900 dpi.

I have done brass at DMS as part of my metal pen class which was 35 watts, 10% of speed and 1000 dpi.

Cermark is available at The Engravers Network in Arlington for $62 a can. cheers!

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11 posts were split to a new topic: Cermark at the Space? (Available as a consumable? Group buy?)