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  • Call for Art – 12th Annual “Seascapes” Online Art Competition

    Location: Santa Fe, NM

    Light Space & Time Online Art Gallery announces an art call for the..
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  • 8th Annual Leaves & Petals Art Competition

    Location: Santa Fe, NM

    Fusion Art invites submissions for the 8th Annual Leaves & Petals art competition..
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  • Art Show:

    Location: Truro, NS

    Visual Voice Fine Art presents 'SUMMER' June 20- July 16, 2022. Open Monday, Wednesday,..
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  • Art instructors needed in Calgary

    Location: Calgary, AB

    Calling for Calgary based artists. Become our hosting artists to gain exposure, income..
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  • Art of Zhen Shan Ren International Exhibition

    Location: Toronto, ON

    The Art of Zhen Shan Ren International Exhibition consists of works from internationally..
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  • Old & New: A Solo Exhibit by Robert Crosby

    Location: Niagara-on-the-Lake, ON

    The paintings of Robert Crosby will be on display in the Joyner Gallery..
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  • ASA Presents

    Location: Calgary, AB

    The Alberta Society of Artists is proud to present “Asian Roots Trio”, a..
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  • ASA Presents

    Location: Calgary, AB

    The Alberta Society of Artists is proud to present “Meditation”, a solo show..
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  • Gallery Ring ARTISTS OF THE MONTH Contest

    Location: , ON

    Gallery Ring announces the ARTISTS OF THE MONTH contest. A RUBY, SAPPHIRE, EMERALD..
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  • “Summer” International Call - Art & Literature Journal - Deadline August 31, 2022

    Location: Toronto, ON

    | Theme: Summer of the soul, summer thunder, summer wine, summer fling, summer..
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  • John Lennard - Exhibition opening June 17, 2022

    Location: Haliburton, ON

    John Lennard is known for his vivid landscape paintings. A serene summer sunset,..
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  • Exhibition: Common Ground

    Location: North Vancouver, BC

    In this exhibition, Sara-Jeanne Bourget, Robin Gleason and Mark Johnsen explore the layers..
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  • New Edition – online art exhibition

    Location: Brooklyn, NY

    Applications are now open for our online exhibition “New Edition”- an investigation into..
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  • Beacon Original Art Call for Submissions

    Location: Calgary, AB

    Painters, sculptors, photographers, ceramic, glass, jewelry and textile artists are encouraged to APPLY..
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  • Landscape Reflections: Solo Exhibit by Marilyn Cochrane

    Location: Niagara-on-the-Lake, ON

    The Niagara-on-the-Lake artist, Marilyn Cochrane, celebrates the natural world in a more encompassing..
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  • Repair Landmark

    Location: Fredericton, NB

    Hello, Looking for a skilled artisan able to repair our farming community's landmark. ..
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  • Call for artworks: Canada-China-Australia exchange

    Location: ,

    Led by Luxun Academy of Fine Arts in collaboration with the Sino-Canada Alliance..
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  • STILL WITH US: Floyd Kuptana at Gallery Arcturus

    Location: Toronto, ON

    STILL WITH US: Celebrating the artist Floyd Kuptana, 1964 -2021. Works in stone, paint,..
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  • Looking for hosting artists, Calgary based

    Location: Calgary, AB

    If you are a Calgary-based artist who is interested to gain exposure to..
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  • Commonwealth Artists' Prize

    Location: ,

    In Brief We are calling for entries from artists who are: 1) A..
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  • Check Jooble for Art related Jobs

    Location: Ottawa, ON

    Looking for a job in the ARTS in Canada? We have thousands of..
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Printmaking Series (3 of 21) - Copper sulfate for etching both zinc and aluminium

By Nik Semenoff June 21, 2004

} Copper sulfate for etching both zinc and aluminium Printmaking Series - Part 3 of 21 By Nik Semenoff Nitric acid is a dangerous chemical, but has been the main mordant used by etchers for centuries. There are many mordants with acids being the main ingredient. Recently, ferric chloride has become more common for copper as this chemical is used in making electronic circuit board. Using it to etch zinc is not a good idea but printmakers try as they look for safer methods. Aluminium is generally not used much for intaglio as artists consider it incapable of giving fine detail or large editions. Because of the cost of zinc plates, one of my students felt she could not finish her assignments and wonder if a cheaper metal could be used. Since I required only six for an edition, aluminium would be good enough, but we were using nitric acid as mordant for zinc or copper. We chose not to use ferric chloride and stannous chloride proved to be too expensive. Falling back on my experience, but somewhat limited knowledge of chemistry, I looked at copper sulfate as a mordant. Within a short time I found the problems of using aluminium and the best additives for the copper sulfate solution, so that by the time I was to teach a summer session class, I had a working process. It was eventually published in an international referred journal and has become the basis for of other printers' work with copper sulfate. Copper sulfate is one of the heavy metals and restricted in some jurisdictions, especially where grapes are grown; used with lime (Bordeaux mix), it has contaminated ground water. When used as a mordant and recycled a number of time, it can eventually be disposed of as a solid in regular waste. Check with local restrictions. Common salt is added to increase the activity of the mordant for both zinc and aluminium. When etching only aluminium, a small amount of sodium bisulfate is added to prevent aluminium hydroxide gel forming - this can be obtained from Sani Flush at the grocery store. Yoko Imabayashi Most resists will work, so all common etching technique can be employed. The action on aluminium in an open bite produces a rough surface so an aquatinting tone can be achieved without rosin. During etching, there is a very small amount of hydrogen produced that constantly pushes out the fine copper particles created from the electro-chemical reaction. So that unlike ferric chloride, the plate does not have to be etched upside down. As the copper is removed from the bath, it will lose its' blue color, indicating how strong it still is. By adding more copper sulfate, the bath can be extended. An remarkable thing happens when the bath sits for a while. The sulfate radicals in the solution attack the fine particles of copper and returns the bath back into a stronger mordant as it recycles itself. Yoko Imabayashi It works very well on zinc and the best replacement for ferric chloride when etching this metal. Some are concerned with the black surface left where the etching takes place. The mordant works just as fast as any other and can be mixed so strong that the reaction can cause the solution to boil. ________________________________________________ Copyright © 2004 Nik Semenoff Nik Semenoff Artist-in-residence University of Saskatchewan Visit Nik Semenoff's website at duke.usask.ca/~semenoff/ for more information.

Notice Board

SUBMIT View

Current notices

There are no notices at this time.

Today's notices

  • Call for Art – 12th Annual “Seascapes” Online Art Competition

    Location: Santa Fe, NM

    Light Space & Time Online Art Gallery announces an art call for the..
    View notice

  • 8th Annual Leaves & Petals Art Competition

    Location: Santa Fe, NM

    Fusion Art invites submissions for the 8th Annual Leaves & Petals art competition..
    View notice

  • Art Show:

    Location: Truro, NS

    Visual Voice Fine Art presents 'SUMMER' June 20- July 16, 2022. Open Monday, Wednesday,..
    View notice

  • Art instructors needed in Calgary

    Location: Calgary, AB

    Calling for Calgary based artists. Become our hosting artists to gain exposure, income..
    View notice

  • Art of Zhen Shan Ren International Exhibition

    Location: Toronto, ON

    The Art of Zhen Shan Ren International Exhibition consists of works from internationally..
    View notice

  • Old & New: A Solo Exhibit by Robert Crosby

    Location: Niagara-on-the-Lake, ON

    The paintings of Robert Crosby will be on display in the Joyner Gallery..
    View notice

  • ASA Presents

    Location: Calgary, AB

    The Alberta Society of Artists is proud to present “Asian Roots Trio”, a..
    View notice

  • ASA Presents

    Location: Calgary, AB

    The Alberta Society of Artists is proud to present “Meditation”, a solo show..
    View notice

  • Gallery Ring ARTISTS OF THE MONTH Contest

    Location: , ON

    Gallery Ring announces the ARTISTS OF THE MONTH contest. A RUBY, SAPPHIRE, EMERALD..
    View notice

  • “Summer” International Call - Art & Literature Journal - Deadline August 31, 2022

    Location: Toronto, ON

    | Theme: Summer of the soul, summer thunder, summer wine, summer fling, summer..
    View notice

  • John Lennard - Exhibition opening June 17, 2022

    Location: Haliburton, ON

    John Lennard is known for his vivid landscape paintings. A serene summer sunset,..
    View notice

  • Exhibition: Common Ground

    Location: North Vancouver, BC

    In this exhibition, Sara-Jeanne Bourget, Robin Gleason and Mark Johnsen explore the layers..
    View notice

  • New Edition – online art exhibition

    Location: Brooklyn, NY

    Applications are now open for our online exhibition “New Edition”- an investigation into..
    View notice

  • Beacon Original Art Call for Submissions

    Location: Calgary, AB

    Painters, sculptors, photographers, ceramic, glass, jewelry and textile artists are encouraged to APPLY..
    View notice

  • Landscape Reflections: Solo Exhibit by Marilyn Cochrane

    Location: Niagara-on-the-Lake, ON

    The Niagara-on-the-Lake artist, Marilyn Cochrane, celebrates the natural world in a more encompassing..
    View notice

  • Repair Landmark

    Location: Fredericton, NB

    Hello, Looking for a skilled artisan able to repair our farming community's landmark. ..
    View notice

  • Call for artworks: Canada-China-Australia exchange

    Location: ,

    Led by Luxun Academy of Fine Arts in collaboration with the Sino-Canada Alliance..
    View notice

  • STILL WITH US: Floyd Kuptana at Gallery Arcturus

    Location: Toronto, ON

    STILL WITH US: Celebrating the artist Floyd Kuptana, 1964 -2021. Works in stone, paint,..
    View notice

  • Looking for hosting artists, Calgary based

    Location: Calgary, AB

    If you are a Calgary-based artist who is interested to gain exposure to..
    View notice

  • Commonwealth Artists' Prize

    Location: ,

    In Brief We are calling for entries from artists who are: 1) A..
    View notice

  • Check Jooble for Art related Jobs

    Location: Ottawa, ON

    Looking for a job in the ARTS in Canada? We have thousands of..
    View notice

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