DIY copper etching tutorial

It is easy to etch your own designs into metal for jewelry. This tutorial will teach you how!

etched-stamped-metal

Rubber stamp designs etched into brass sheet metal.

Before you begin, please read the safety considerations for etching metal with chemicals blog post.

You’ll also probably want to read the design considerations for etching metal blog post too!

Now, here are the steps for etching metal with ferric chloride:

1. Choose your metal(s). Ferric chloride works on copper, brass and nickel silver. It will not work on actual silver (fine or sterling). Do NOT use ferric chloride on aluminum. Metal as thin as 24-gauge can be etched – just leave it in for less time than you would for thicker metal. If you want to etch both sides or etch really deeply, use at least 20-gauge metal.

2. Clean metal with Penny Brite (our favorite) or an abrasive cleaner and scrubbie. The metal must be very clean. Water will sheet off  (not bead up) on the surface when it is truly clean.

3. Apply resist. Stazon ink, Sharpies, toner transfers – there are many options! (Read the design considerations.)

stamped-up-etch-copper

A combination of rubber stamps and hand-drawn Sharpie doodles decorate the large copper sheet. The "C" was done with a PnP blue toner transfer.

4. Cover all areas that should not be etched with ink or durable tape. This includes the back, sides and inside any holes.

inked-edges

It would have been less messy to ink the edges before putting the tape on the back.

5. Pour 3/4 – 1″ of etchant into a non-reactive container (glass or plastic). If you are etching more than one type of metal, use a separate container for each. If desired, add a teaspoon of citric acid to “boost” the etching action.

etching-chemicals

A little citric acid (from the grocery store) accelerates the etching action, but is not required.

6. Attach metal to a styrofoam float “boat” and place in etchant. Suspending the metal into the bath with tape is another option. Just make sure the metal is submerged yet isn’t touching the bottom of the container.

etching-bath-boat-float

A boat ready to float!

float-my-styro-etch-boat

Boat floating with metal face-down in the chemical bath.

7. Allow to float for 30-90 minutes, depending on depth of etch desired. Nickel silver tends to take longer than copper or brass because it contains just 65% copper. (The rest is nickel and zinc.)

artist-etched-metal-jewelry

Etched design is clearly visible - this piece is ready to be cleaned.

8. Scrub metal clean in a tub of water. Use baking soda to neutralize the acid if desired. Some people use a weak ammonia bath to really make sure the acid is removed. Cleaning all the etchant off is important, as it will stain.

That’s it! You’ll probably want to patina the metal with liver of sulfur or another oxidizer to really bring out the definition in your design.

etched-copper-bikes

Using steel wool to buff the patina off the high points.

Ferric chloride can be reused several times. Once it is exhausted (typically after about 3 uses), consult your local waste management system for guidance on disposing of it.

rita's etched bracelet

Rita wrote on a copper washer with Sharpie to make the etched center link on this bracelet.

Happy creating! Use the “print friendly” option to print these instructions – with or without pictures! Questions are always welcome too. ~ Cindy

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23 Responses to “DIY copper etching tutorial”

  1. jami says:

    Great tutorial, thank you! I did this once with a friend and would love to try it again on my own. Nice to have the step by step instructions. I like your idea for the float – that looks easier than how we did it. :)

  2. Angie S says:

    This is pretty much what I did this summer, but I used a different etching chemical, and the name is escaping me at the moment. My question is this – we I tried using stamps (with red stazon ink) the stamp would slide around on the metal, creating an unsuitable stamping image – especially with the larger stamps. Is there a trick, or can you offer any guidance on how to do that? I found that my best etches turned out to be the ones where I used the sharpie resist.
    Thanks!

    • Cindy says:

      Hi Angie! It might help to scuff up the surface of the metal with steel wool or a green scrubby pad first. That gives the metal a little “tooth” or grip to keep the stamp from sliding around so much. Amongst our designers, there are a few who are rubber stamping pros – and a few of us who are completely deficient! I think it must take some practice. We kept the Stazon cleaner close at hand to remove the oops and try again.

  3. Cindy says:

    Thanks Jami! Hope you have fun etching. I think the floats are a nice idea – the other way (making a tape sling across the etching bath – is that what you did too?) is kind of difficult to undo, especially when you’re wearing gloves.

  4. Cindy says:

    At the moment we are out of ferric chloride – but a new shipment is due in this week! Plus we are also putting together an Etching Kit that contains everything you need!

  5. Will be very interested in the kit when assembled. Will you notify us when it it ready for sale?

  6. Cindy says:

    Hi Joanne! Yes, I will update this post when the kit is available for sale. Also, the stock number (45-210-001) is already in our online store, so you can set a “notify me” email alert if you’d like to be notified directly once it is available! http://bit.ly/GFRVpq

  7. Will these etching kits be available at the Rings ‘n Things upcoming bead shows, say the one in Trevose, PA?

    • Cindy says:

      Hi Barbara – no, sorry the kits won’t be at the show….but when you spend over $100 at one of our bead shows, you get a coupon for free shipping on your next order, which you could use to buy the kit!

  8. Cindy says:

    The ferric chloride is back in stock! The ferric chloride is back in stock! :)

  9. Sarah says:

    Can you etch stainless steel? It doesn’t seem to oxidize with liver of sulphur. Is there any other way you know to oxidize or etch stainless? Thanks for your great step by step tutorials.

  10. Cindy says:

    Hi Sarah! I’m not sure if you can etch stainless steel, but I know you can’t etch it with ferric chloride. Stainless steel is formulated to resist tarnish (which is what a patina is) so yeah, liver of sulphur is powerless! :) Ferric chloride only works on copper alloys. If it is the color of steel you’re after, try nickel silver instead. Despite its color it is mostly copper, so ferric chloride works great.

  11. Noemi says:

    Fantastic tutorial. So many good tips! I love the fact that you use the foam boat to suspende it on the solution. So much easyer than using the tape on the container.
    Thank you so much for sharing!!

  12. Vicki says:

    Thanks for posting this great tutorial.
    Love the idea for the float.

  13. Helen says:

    I save the styrofoam “plates” from packages of meat from the grocery store, smooth ones are best but not necessary. Of course, wash them well. I can then cut them to size then use double sided tape to attach my metal to the foam boat. I also use tape to make a little tab to make it easier to lift the “boat” from the etchant. Wearing rubber gloves prevents staining your fingers. I have a separate container w/3tbsp of baking soda mixed into a cup of water to neutralize my metal and boat when the piece is etched. I found I can re-use the etchant several times but any remains must be completely neutralized with baking soda before washing it down the sink. (I use those square “zip-lock” type containers w/lids)
    Sometimes when I use a stamp I too don’t get the desired imprint so will often use another resist to either enhance the print or add other embellishments. I too have found RED Staedtler lumocolor pens to be the best resist. Happy etching!

  14. Siri says:

    Hi!
    I was just wondering what kind of chemical you would use if you where to etch silver? Siri

    • Cindy says:

      Hi Siri! Ferric nitrate is typically used to etch silver. It is considerably more toxic/dangerous than the ferric chloride used for copper, so make sure to do your homework if you decide to try it! :)

  15. Jenny Smith says:

    I have already done some etching, but this really helped with some of my questions. But how do you etch aluminium??

  16. Denny says:

    Hi Cindy,
    This is a great tutorial! The type of ferric chloride that I am able to get is the orange crystal type. Seems that we can’t get the liquid in Canada. My question is: what is the correct proportion of crystals to water? I’ve tried several amounts, up to 50gm crystals to 250ml water and it still takes 10 to 12 hours to etch.
    I havent’t boosted it with citric acid yet.
    Any suggestions? Do you know of a source for anhydrous ferric chloride that will ship to Canada?
    Thanks,
    Denny

    • Polly says:

      Hi Denny,
      Actually, Rings & Things can ship ferric chloride to Canada.
      The only restriction is that it has to go UPS Standard, rather than through the post office, which means that UPS’ brokerage fees apply.

      Click “brokerage fees” in the ferric chloride page below, to compare the rates for personal and business shipments to Canada.

      We currently offer 1 liter bottles:
      http://shop.rings-things.com/cart/pc/Ferric-Chloride-1989p32490.htm
      and we’ll be stocking 4 liter bottles soon as well.

  17. Cindy says:

    Our new Etching Kit is now in stock! It includes ferric chloride, Stazon ink, Penny Brite cleaner, copper and Novana Patina! http://bit.ly/IWaoxQ

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