How to Acid Etch Brass with Vinyl Masking 

Thanks!

Maybe a mm? You need to keep an eye on it, and the quality of brass, concentration of ferric chloride, temperature, how much you use and the amount of exposed brass. There are too many variables to say for certain. I just check it every hour or so to see how it’s going.

Pretty sure it is just oracle 651 or cricket brand vinyl. I’ve never had it dissolve in the ferric chloride.

@@catspawcustoms i hope we had that kind of sticker here in the philippines.

Sir is it important that we use only 47% ferric chloride?

@@joveee.g4179 I don’t really know. I’d probably recommend staying at 47% or lower. If you use lower, it just takes longer. If you went higher, it would probably go faster, but beyond that, I’m not sure what would happen.

@@catspawcustoms i really dont know the percentage of this chemical we are using because unlike the chemical you use it has label on it like you know the percentage of the chemical you are using. Here in the philippines we dont have those label.

Well, it’s brass. So whatever the melting point of brass is versus how hot the fire gets will determine the survivability.

Thank you, and I haven’t tried to make a fire stamp or branding iron, though with a thick enough piece of brass and a deep enough etch, I think it would work pretty well.

Yes it can

Maybe, I’ve never tried it.

ferric chloride - كلوريد الحديد

No idea, but it would be worth a try. Though, you have a laser cutter, you could paint the brass, cleanly burn away the paint where you want to etch and do it that way. Paint will mask the metal from the acid too.

@@catspawcustoms I have painted a metal plate and laser engraved a pattern but not sure if i am using the correct type of paint that will resist acid, some say acrylic or lacquer. I have seen a video where there still is residue on the lasered surface preventing acid etching even though it looks like bare steel or brass, they say wash off with lighter fluid or soap and water which doesn't affect the painted surface. I was was wondering if there are any up to date current active forums that talk about this method of engraving using paint as a resist.

@@chrisabraham8793 you’d definitely want to do some tests to be sure. I’ve had success masking with a paint pen, which I believe was a lacquer paint.

@@chrisabraham8793 and actually, it would also be worth trying to cut the vinyl after it is stuck to the brass. My only concern there is me thing the vinyl or adhesive with the laser.

@@catspawcustoms Not sure if they do laser cutting vinyl, they seem to make laser cutting rubber for rubber stamps.

Contact paper/transfer tape

No idea, but it wouldn’t hurt to try. I think Wesley Treat - Maker of Things may have done a video on this with steel, but it might have been aluminum. Or I could be completely misremembering it.

Amazon

Not really. Anything should work. I usually use a color that I don’t expect I’ll need. Cricket vinyl works well.

@@catspawcustoms which type of colour

@@yogendrathakur3683 it really doesn’t matter at all, but I think glossy is better than matte.

If you’re talking about the areas that are etched away, you’d probably need to polish them with a Dremel or something to get them shiny.

Ferric Chloride

Ferric Chloride, 45% solution.

how to ecthig stanless steel?

@@metaltrickssl5506 No idea if this method would work on stainless

Because this is acid etching, not electroplating. Power is not needed.

You can see it on the label on the jug in the video. Ferric Chloride.