Initial experiments with home etching. Mordants either CuSO or NaCl + CuSO4

The most interesting result so far was to get a really good line etch by using just a piece of felt soaked in CuSO4 and sandwiched between an old copper plate and the aluminium plate connected with a copper wire.

This process was first invented in 1840 and patented. But it fell out of favour and all the older toxic chemical etches - which involved asphaltum, lead and mercury etched in either sulphuric or nitric acids  kept going.

The electrolytic process is clean and green by comparison. It took me about a month to get both line and aquatint tone under control. But it's on the way. Next stage is to apply sugar-lift and coffee-lift spit-bite and carborundum gradients.

Go back to Art Class

01 The etched plate | lines and aquatint

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02 Intaglio inking

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03 First attempt to get Japanese print colours

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04 Muted colour roll-ups

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05 Second attempt at Japanese style colour gradient in the sky

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Experiments in Etching Dec 2019

Distant cliffs

Lightfall | Towards a plate etched with hard and soft ground

Lightfall | Towards a plate etched with hard and soft ground

The Seven Bridges of Koenigsberg

The Seven Bridges of Koenigsberg

The Year of the Supernova | Foucault Tested on Takapō

The Year of the Supernova | Foucault Tested on Takapō

06 Some further aquatint which went wrong

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07 Intaglio inking

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Some backgrounds

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More backgrounds

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