Some masters believe that they can distinguish an inorganic pigment from organic by dissolving a drop of PMU paint in a glass of water. If the water is evenly dyed, it, in their opinion, will mean that the pigments in this paint PMU are organic. If the colored powder will settle on the bottom of the glass and does not paint the water, it will mean that the pigment PMU is inorganic.
In fact, this experiment is questionable, because the solubility or insolubility of the pigment in the paint is not due to the dye, but certain chemical substances in the composition of the paint.
The so-called surface-active substances/agents (SAAs) or some binding substances affect the ability of the dye to be evenly distributed in the base of the paint. SAA reduce surface tension between substances that do not dissolve in each other, i.e. help the dye to solve in water, glycerin, spirits and other liquids.
Organic paints almost always contain SAAs, so they will dissolve in water, but inorganic not always. That is, inorganic can evenly dissolve, and can also settle on the bottom of the glass, so you will not be able to identify them.
The only conclusion that you can make by dissolving a drop of PMU pigment in water is whether it contains SAAs, and this is already very good. After all, if the paint contains binding substances, the pigment will be evenly distributed in the base of the PMU paint and the remainder of the pigment in the skin will be very good. If there are no such components, it does not mean that the paint is bad, but it will be more difficult to work with.
All series of our WizArt paint have binder, even in mineral, so it is very convenient to work with them and the rest is always great!
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