Hi, I use a mortar & pestle, mini measuring spoons, and Senelier dry pigment. I place a measured amount dry pigment in mortar, 2 drops of alcohol to aid in wetting it, then 1 drop of Tween 20, and 1

Thanks Jacques !

This company is a good source of pigments: https://www.naturalpigments.com/ They also have an amazing knowledge base you can learn from. The knowledge base emphasizes historic uses of pigments. Best

Hi, This might be of interest for some of you: https://www.picto.info/carbondoc/carbon_RS2.pdf (Page 10 shows how René Smets prepares the powder pigments and mixes them in the emulsion for his carbon

Hi to all, I experiment on gum printing and using generally powder pigments, and sometimes, for comparison, watercolior tubes. I always found some paper staining, which can be reduced by sizing. About

Yes Diana, this answer helps me a lot too, thank you! It saves me the trouble to try each and every pigment only to get disappointed again. Your answer underscores my intuition that finer grinding is

Maybe tbe brush I used was not soft enough, so near the edges of darker areas I damaged the exposed emulsion. Probably, when I am able to grind the pigment as suggested by Don, a softer brush will

Thank you for this suggestion. I will try this and have a feeling this might solve the problem! Kind regards Nicole Hagesteijn-Pezie

No suggestions but this reminds me of a tour I had with my mom of the Disney studios when I was a kid. We were shown bins of powdered pigments. They were so brilliant that it looked like it would burn

Hi Don, Thanks for the tip on storing tissues on a paper tube and for grinding pigment with a rock tumbler. John P

Hi Nicole, I don't know if this will help or not. And I hope I'm understanding you correctly. But I have one pigment (black) that is powder, and it is already ground so fine that I can easily use it

Hi Nicole, I wonder if this staining is the same that we used to call 'tone inversion' in discussions in the list years ago. If so, it happened sometimes in underexposed areas. At least in my

An inexpensive rock tumbler and some ceramic beads will not only mix the powder but also reduce the particle size. It’s what I use for dry pigments in carbon transfer ( credit to John Lockhart, a

Hi everybody, Can you please help me with this question: I inherited from a friend ( she was an artist painter) a huge amount of powder pigments; she knew I was trying to master gum printing. I was

I have been looking at this for two years since the crossover point. Just some research I have been doing for my alt process work. Note that a Kallitype that has been toned with Palladium

I recall chatting with Judy Seigel at her west village home one afternoon when she repeated an adage that she has used many times, "I refuse to work in any process where the chemicals to make a print

Not really – gold is trading at around $1842 per troy ounce. Platinum currently around $1093, Palladium currently $2386, Silver $25.33 So Platinum would be the process for permanent prints, with

How do you know all this? Are you in this metals biz or was this just for your palladium printing research? This is quite useful for my class so I thank you! Chris

From the JM Bullion Website: (https://www.jmbullion.com/investing-guide/types-physical-metals/troy-oz/) History of the Troy Ounce No one knows for sure when and where the Troy weight system was

The cross over occurred back in February 2019 – where Palladium Troy Ounce was more than Platinum Troy Ounce. It is driven by two primary factors – the autocatalytic market (notably USA and China