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A classic example of oxide clumping can be seen in this first batch of this "Avocado, Cucumber & Lime" soap. |
So here are a few tips on how to avoid pigment clumping in CP soap making.
- ALWAYS premix your colours in a little oil before adding to soap batter. 1 teaspoon oxide in 2 tablespoons *oil for every 500 grams soap is a good starting point. You can use less for a lighter shade, but a teaspoon should give you a strong, solid colour.
- Mix vigorously or use a mini mixer. (I use a mini frother and it works very well!).
- Premix colour right before you have use them, otherwise mix again to incorporate particles that may have settled.
- When adding purees or juices (as was in my case), DO NOT add both colour and additive at the same time. Mix in puree/juice first, blend, then add your premixed colours, otherwise what happens when you add both together is that the water-based additive will affect your oxide and cause it to clump irrespective of whether you premixed it or not.
*Titanium Dioxide comes in two forms: Water dispersible and Oil dispersible. Premix in appropriate base.
**Also, while premixing oxides in oil is best, ultramarines prefer water.
And that's that! If you don't mind the clumping then you needn't worry about all this. Otherwise a little extra effort goes a long way. :)
Happy Soaping!
Love,