Gum Bichromate

2020

A while back I printed a black and white photograph on sketching paper. When I added watercolour paint, the image dissolved. Poop!

My thoughts turned to gum bichromate and Covid 19 gave me time to give it a go. With my ink jet printer I made black and white negatives, about eight inches by ten inches. I prepared the paper in the garage, exposed it outside and washed it in the laundry room sink. Most prints have a coloured layer that has to be exposed, washed and dried, followed the next day by a black layer.

It is a difficult process. A discouraging amount of paper landed in the recycle bin. But I got a few keepers. The water colour paper and the water colour paints make the texture and tones quite different from conventional photographs. Each handmade print is unique. Even following my notes carefully, it is impossible to create the exact same image twice.

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