I’ve been dealing with badly cracking oxide pigment, I’ve tried many things and decided to try a new binder recipe which has way more glycerin than I expected and now the paint has Dried and pulled away from the walls of the pan, no cracking, but it’s shin and rubbery 😭. I made 22 half pans, is it worth trying to break it back down, adding more pigment and mulling it again or should I just dig it out and start from scratch? I’ve had great luck with all my other pigments but this particular oxide is a bear!
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What kind of oxide is it? I find most oxide's tend to crack. A recommendation is not adding glycerin to the binder recipe and instead have a base binder and then add the glycerin separately to said pigment at that time. Sometimes I have a little bit of glycerin in my base binder and then add extra while working with trickier pigments.
See if you can salvage it by breaking it down - I usually chuck it but that's because I don't have the time. Oxides are not expensive so you're not chucking away a heck of a lot of money I spose.
its Iron oxide, yellow. my first binder recipe had a small amount of glycerin but I also added some when mulling but it dried so hard it cracked and fell out of the pans. I will go back to my two part water to one part gum Arabic with a small amount of glycerin and try again. I’m not sure this batch is salvageable. Thank you so much for your advice. This pigment is the only one I’ve had so much trouble with.
Good on you for preserving. This is the challenging part of working with matte pigments. Matte pigments are so much harder because they have so many variables that you have to learn as you go. I wish you luck. You will conquer it!!!!!!!!