I used CerMark metal laser marking spray on an aluminum license plate blank, and it looked great until I went to rinse off plate and the engraved area washed away too! Anyone ever seen this?
I don’t use cermark, but it happens when your settings are incorrect - you didn’t fuse it to the material.
Try different settings until you find ones that work.
Agree with @eflyguy . I spent an afternoon a year ago experimenting with cermark and anodized aluminum. Lots of trials resulting in faint marks where it just didn’t ‘hold’. I found that it’s not just a matter of intensity; a lower power and slower speed had an unintuitive (to me, at least) better result than some high power settings.
Keep at it! Good luck!
The company says Cermark will not work on anodized or clear coated metals.
What Rpegg said. I suspect clear coat or some other surface treatment. worst case, try sanding the surface with some fine grit to remove that stuff. or it could be you settings.
ok well I just tried a few different settings and attached is a picture of what I got this time. Looks like the settings make a huge difference. I scrubbed the plate under running water with a dish brush.
Looks like you are on the correct path there should turn out pretty amazing with the correct settings.
setting up another test, but at 450lpi I probably wont update any time soon…lol its a big picture/graphic and just wanna see if it works on a dummy plate before I waste another
The thickness of the metal has a lot to do with it. Thicker pieces wick the heat you need away so you need more pews and/or less zooms to get the Cermark to set. Once it’s set, it should last forever. You didn’t say which formula you are using, but Cermark recommends LMM-14 for softer metals such as aluminum or copper, and LMM-6000 for harder metals like stainless steel.
aha I have LMM-6000. seems to be working just have to slow down to 500 and do at least 450LPI.
hate to buy another can that stuff is outrageous. I want to say it was close to $100 a can. I also bought LMC-6044P for Ceramic and Glass.
Super spendy. LMM-14 is $62 from the manufacturer. I found that out after spending $84 at Amazon…
when my wife wants to make something that requires it I give her that look like “you better get your own can woman”…