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The effect is visible already at concentrations of 0.1% in the paint system. The intensity is steadily increased up to pigment concentrations of about 2%. The single light spots arising from the pigment structure and orientation in the paint system seem to spring back and forth when a painted metal plate is tilted.
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The pearlescent shell of a black-lip pearl oyster. Pearlescence is an effect related to iridescence and has a similar cause. Structures within a surface cause light to be reflected back, but in the case of pearlescence some or most of the light is white, giving the object a pearl-like luster. [16]
Flakes with different colour effects may also be used within the same paint. [3] Pearlescent paint uses embedded pieces of iridescent material to produce subtly different colours depending on the angle and intensity of the light. More radical colour changes and "two-tone" or "flip" colours (e.g. from purple to orange) are sometimes produced.
Red acrylic paint squeezed from a tube Example of acrylics applied over each other. Experimental pictures with "floating" [a] acrylic paint Acrylic paint is a fast-drying paint made of pigment suspended in acrylic polymer emulsion and plasticizers, silicone oils, defoamers, stabilizers, or metal soaps. [1]
Radioluminescent paint is a self-luminous paint that consists of a small amount of a radioactive isotope (radionuclide) mixed with a radioluminescent phosphor chemical. The radioisotope continually decays, emitting radiation particles which strike molecules of the phosphor, exciting them to emit visible light.
A common example is the color variation that appears in pearlescent automobile finishes or "metallic" paper; e.g., Kodak Endura Metallic, Fujicolor Crystal Archive Digital Pearl. Observer metameric failure or observer metamerism can occur because of differences in color vision between observers.
Paint or spray objects with a solution of 250 grams of ammonium carbonate / 250 grams of ammonium chloride / 1 litre of water, each layer is dried for 24 hours, after reaching the desired shade wax or lacquer it. Brown or black can be used as a base color for copper patina.