Carbon Transfer Tips and Tricks: PET Backing

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  Yupo is probably the most widely used substrate in carbon printing for making tissue. It’s great because it is affordable when purchased in large quantities, can be found just about anywhere, is great for coating on and it holds a gelatin emulsion very well. The only disadvantage is it is very flexible, which causes misregistation when making multilayer […]

DAS Comparison

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DAS comparison Here is a quick comparison of the two types of DAS (4,4 ‘ – diazidostilbene -2,2’ – disulfonic Acid Disodium Salt Tetrahydrate) I have. The first one, which I just purchased, is supposed to be 99.63% pure, whereas the second, which I purchased online, only has a purity of 97%. I’m posting this […]


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Ideally the best place to make carbon prints would be a studio with running hot and cold water, but that isn’t the case for my current studio. I do have plans to move into a better studio, but am waiting for the current tenants to move out. The space right now is being used as a […]


Posted on Posted in Tests

I was separating three pounds of DAS into smaller containers a couple days ago, working under a red safelight, and got to thinking. I thought a red safelight was the least probable to expose any of the light sensitive salt, but was it really? I got out my UV light meter and read the illuminance […]

Exposure Unit: Part 3- Build

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The heat sinks I purchased needed to be modified for use with the surface mount leds. First I drilled and tapped 3mm holes to screw on the leds. Since copper is a very soft metal, drilling and tapping was difficult as the holes are so small and the drill bits and tapper would catch then […]