Over the summer I started a project using liquid light www.rockaloid.com/products.htm…
For those who have not heard of this product, it is an emulsion that you can put on any surface that allows you to create a black & white image on it. It doesn't even have to be flat, though the more it curves you risk parts of the image becoming out of focus. There are two main forms of Liquid Light, one that is around a #3 contrast paper and another one that is variable contrast. While it is nice to have a variable contrast version, it is more sensitive to red light and it can fog under your normal darkroom lighting. If you use a red filter under your enlarger to get your item for printing aligned properly, it could cause fogging and over exposure. This can be used for both enlargements or contact printing.
With that said, I mentioned that I started a project over the summer. I've had a couple problems doing this and it is part of why I've not done much in the darkroom over the last few months. Was just one failure after another and after looking back at things more recently, and looking at some pieces I had coated (but then turned on a light so ruined them all, which was my last straw at the time) I could clearly see what I was suspecting under the red light, that the coating wasn't going on smoothly.
I had bough` a nice, expensive paintbrush since the directions talked about painting it on, but it would cause a lot of streaking and leave spots with little emulsion. I tried using masking tape around the edges to pour on the emulsion and spread it would, but it would cool down and solidify too quickly so wasn't able to get it spread evenly either.
As I'm a rather eclectic photographer/printer and I spend a lot of time looking at different products whether it's for my personal projects, which often involve the darkroom, or the studio I help run that focuses on digital pictures. While looking at a product that would allow me to use my wide format printer to print on metals, I was watching a video that someone made showing how he coated his materials and it made me realize that I was looking at it all wrong. Both the products also talked about using rods, which seemed even more difficult and they are expensive to get. This guy uses a cheap sponge brush. The bristles don't separate, leaving streaks in the emulsion.
I tried it last week and under the red light it looked like the coverage was a lot more even, I didn't see the streaks in it. I hope to get back in there during the week to do some calibration prints during the week.
Here's some samples I found on DA that were made using a liquid emulsion.
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There are a few more, just need to do a search or look at some of the deviants galleries in the above samples.
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