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Etching Solution for Stainless Steel?

Posted on March 28, 2012 by Eric Robert Posted in Questions About Products, Etching, & Sandcarving 4 Comments

Do you know of any solution I could use to etch Stainless steel?
Thanks

Metal knob sandblasted.I have used the sandblasting method on steel objects before, and it worked okay. You can see a picture of a metal knob that I etched with a logo.
It’s hard to get the stencil resist to stay on without being blasted off though. An even better way is to use an electrolysis method.

You can make the solution by mixing regular white distilled vinegar with salt. To do this, simply follow my directions below:

  1. Clamp the positive (red) wire of either a battery charger or battery to the metal.
  2. Dip a Q-tip into the etching solution.
  3. Clamp the the negative (black) wire to the wet part of the Q-tip but at the top end of it.
  4. Turn on the battery charger and slowly rub the wet Q-tip over a stencil.

When you rub the Q-tip over, you should here a small burning sound.

Note: There are some battery chargers that will not work with an open circuit so be sure to get the right one or use a battery instead. Those small rectangle 9 volt batteries should be sufficient.

-Eric


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4 thoughts on “Etching Solution for Stainless Steel?”

  1. Etchworx says:
    March 28, 2012 at 6:15 pm

    Hi Eric
    Etching stainless steel can be difficult but if you thoroughly clean it then get it warm ( about 30 deg C) you gan get a reliable result. I usually use vinyl resist but rapidmask works too. Gotta cut down pressure to 40psi on a pressure pot. Electro etch works well too. I get a deep etch using NaCl ,HCl and a welding inverter.

  2. Wacast says:
    October 14, 2014 at 5:43 pm

    What material are you using to make your stencils out of?

  3. Monogram Chic says:
    January 4, 2017 at 5:13 pm

    I use vinyl or go to Walmart and buy some contact paper (stuff you use to line your cabinets). I print them on my silhouette cameo machine or my friend prints using the cricut which isn’t my favorite.

  4. Justin li says:
    January 17, 2018 at 5:57 am

    Sinoguide is a leading developer and manufacturer of products in the field of photochemical etching.
    Dongguan factory was founded with 12 etching lines (6 horizontal and 6 vertical etching lines) in making precise metal parts and filter screens through photo etching over 10 years. SG-etch is known for offering the fastest lead-time of samples in 2 ~3 days from blueprint to shipment and excellent customer service as well as producing top quality metal etached parts.

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