![]() As water leaves the emulsion, and the binder clarifies, the value of the color darkens. This milkyness slightly lightens the value of the color. When wet, an acrylic/water emulsion has a slightly milky appearance and becomes transparent as the paint dries. This way you are adding more of the acrylic/water emulsion to keep the formula and film stable. Instead you should dilute with an acrylic medium, which is essentially the same as the paint but without the color pigment. Why? Too much water will upset the balance and spread the acrylic polymer too thinly so the molecules can't reconnect properly to form a stable film. ![]() ![]() Once the water leaves the system via evaporation or absorption, the paint dries, creating a stable clear polymer film full of trapped colored pigment particlesĪcrylics should never be thinned with more than 25% water. Water is the vehicle for water-based acrylic and when combined with the binder, it creates a polymer emulsion.
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