Great Video, I was just asked to do a job to engrave/Mark bottle openers made of brass. And I just purchased the OMTECH spray, which was half the price and bigger in size. So I will try this as well. Thanks for doing this, it was very helpful and gave me hope!!! Thanks Sir
Thanks for video, made few tests myself and if still someone interested, it works good with cheap mix of titanium dioxide and alcohol. Tested on Ortur LM3 20W. 50mm/min 80% power.
can the titanium dioxide be removed from the brass? I’m looking to paint brass white (which has titanium dioxide) then remove the paint with a laser. Don’t know if you can wash away the burned titanium dioxide after
@ yes it works but i put tio2 powder (cheap and available everywhere) in alcohol in spray bottle shaked and spray. Dry or use hot air gun if you are impatient🙂 Clean with wet rug after easily or you can mask rest with some tape can send you photo if u like
If you leave any medium on brass for too long, it will start to discolor it, or give it a haze. As far as scratches, that depends on the product used to clean. Microfiber cloths are best. With the omtech spray, it's simple water cleanup and dry with a microfiber. Melamine sponges are not recommended.
Sorry, I just saw this for some weird reason. It says it is metal marking spray. The description states for "aluminum, stainless steel, brass and more".
There is a bottle of powder that you add alcohol to wet it and brush it on. I prefer the spray for an even coat but the I started with the bottle of powder and added camping fuel as that was the highest alcohol % I could find local to me.
How much do you think is in a can by percentage. I'm sure that the people who make these sprat but it by the barrel. Just that none of us are going to buy a palletfull.
Why my Confederate Homie, would you be using those Commie numbers?? Crazy to see fine US citizens doing that. No offense just curious why people are laying down to that. I can use either but why would I, We use inches here in the US. As a CNC machinist in a pretty large Aircraft Manufacturing plant I never hear the word Milli Peter.
You know, 50+ years ago when I was in High School in the USA, I learned metric. Your machinist world might be inches, I doubt much chemistry is done in Imperial measures. Not much physics either. The inch, BTW, uses the metric system as a standard.
I was just glad to know that cold galvanizing was bad to use with lasers without a good vent.
Hu! Thanks for the tutorial! About the Omtec black spray, is it white when painted on ? New at this 😊
Great Video, I was just asked to do a job to engrave/Mark bottle openers made of brass. And I just purchased the OMTECH spray, which was half the price and bigger in size. So I will try this as well. Thanks for doing this, it was very helpful and gave me hope!!! Thanks Sir
I'm glad it was helpful to you. Good luck with your project!
@@LaserNoob Thanks
Thanks for video, made few tests myself and if still someone interested, it works good with cheap mix of titanium dioxide and alcohol. Tested on Ortur LM3 20W. 50mm/min 80% power.
can the titanium dioxide be removed from the brass? I’m looking to paint brass white (which has titanium dioxide) then remove the paint with a laser. Don’t know if you can wash away the burned titanium dioxide after
@ yes it works but i put tio2 powder (cheap and available everywhere) in alcohol in spray bottle shaked and spray. Dry or use hot air gun if you are impatient🙂 Clean with wet rug after easily or you can mask rest with some tape can send you photo if u like
Fantastic video, just curious, have you tried it on any clear materials
I'm trying it on glass this weekend.
What about all the scratches and the haze that’s left behind . That’s my problem is the scratch and haze
If you leave any medium on brass for too long, it will start to discolor it, or give it a haze. As far as scratches, that depends on the product used to clean. Microfiber cloths are best. With the omtech spray, it's simple water cleanup and dry with a microfiber. Melamine sponges are not recommended.
What about the brass curling?
There was no curling with any of the methods I used in this video. Hope that helps.
I wonder if this would work with aluminum.
Sorry, I just saw this for some weird reason. It says it is metal marking spray. The description states for "aluminum, stainless steel, brass and more".
Interesting results. Great video. BTW, Omtech Black Laser Marking Spray link is showing Currently unavailable.
It is back in stocks now.
Thank's for letting me know.
There is a bottle of powder that you add alcohol to wet it and brush it on. I prefer the spray for an even coat but the I started with the bottle of powder and added camping fuel as that was the highest alcohol % I could find local to me.
I used my ortur 5.5w and neje 10w for the omtec spray and it works just fine. It last surprisingly a long time too.
Tempera paint ( kids finger paint) works on glass as well. Black paint for a white coat and white paint for a black finish coat.
For those wandering, the omtech spray is now $40
I thought you did a video using a board at an angle to get the best focus or something like that. Was that you?
Nope. Not me.
I looked up the price of raw molybdenum trioxide power, the main ingredient of laser marking spray, and it was $934.00 for 60 grams. : (
Dang. I'll stick to the spray. Lol
How much do you think is in a can by percentage. I'm sure that the people who make these sprat but it by the barrel. Just that none of us are going to buy a palletfull.
Why my Confederate Homie, would you be using those Commie numbers?? Crazy to see fine US citizens doing that. No offense just curious why people are laying down to that. I can use either but why would I, We use inches here in the US. As a CNC machinist in a pretty large Aircraft Manufacturing plant I never hear the word Milli Peter.
Only with lasers! Lol
@@LaserNoob OK, but I just can't make sense of it, I've been playing with a few lasers too in my shop but I use IPM. "Getter Done"
Only three countries use imperial: US, Myanmar and Liberia. Two of the 3 are dictatorships.
give it time
You know, 50+ years ago when I was in High School in the USA, I learned metric. Your machinist world might be inches, I doubt much chemistry is done in Imperial measures. Not much physics either. The inch, BTW, uses the metric system as a standard.