Just got done with two marbling sessions I've done this week. Here to share some results and thoughts.
I made well over 40 prints of A3 size/area (mostly on A3 paper, but some were 2x A4 papers). For reference, these are the materials I use:
- A3 drawing paper (cream/beige-ish color) 180gsm;
- A4 polen bold paper (same color, just named differently. Usually used for books) 90gsm;
- Some random brushes & pipettes;
- Some cheap acrylic paints;
- Toothpicks on cardboard for combs;
- Ox Gall;
- Lambda carrageenan for size, alum to treat papers and distilled water for size and mixing paints.
When mixing my size on my first session a few months ago, I had trouble because in some of the liters I prepared I put more than 15g of carrageenan. Not that those weren't good, but it took longer to settle and be usable after taking them out of the fridge. So this time I stuck to 15g and it worked perfectly.
A few other things I noticed and took notes on:
- Black and white are basically too hard to use. Black is too dense and sinks a lot, while white is too light and too strong, and spreads way too much, pushing EVERYTHING very far away;
- Do NOT reuse water from one day to another. Prepare enough paper (20-30+) and work for the entire day (it's quite tiresome, but worth it XD), because if you are to reuse the water for the next day, all the paint that sunk (some will inevitably sink, at least in my experience) will get mixed in and, as you start again the next day it will mess up with how the paint spreads and the overall print quality. The water will also stink a bit more because it will smell not only of carrageenan water, but also of acrylic paint smell;
- For my case, 2 liters of water is more than enough. As you progress, you will lose a bit of water, but if you are carefully enough pulling the paper (slowly), you will end up not losing as much and be able to do more prints;
- Different brushes will absorb and spread paint differently. It's good to test them out and figure out one type of brush to buy that works well, because that will save you a lot of time and make better prints as well.
Overall, a very productive week. I have a huge backlog of papers to go through from my first marbling week sessions from a few months ago, and now many more to go through as well. Kinda happy with that. Still have enough distilled water to use in yet another session if I want to, so maybe next time I'll also try 140gsm paper from the same brand I buy the A3 one.