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Tempera, also known as egg tempera, is a permanent fast-drying painting medium consisting of colored pigment mixed with a water-soluble binder medium (usually a glutinous material such as egg yolk or some other size). Tempera also refers to the type of painting style done in this medium. Tempera paintings are very long lasting, and examples from the 1st century still exist. Egg tempera was a primary method of painting until after 1500 when it was superseded by the invention of oil as "tempera paint," although the binders and sizes in this paint are different from traditional tempera paint.            
Sizing : solutions consists of mainly modified starches and sometimes other hydrocolloids, such as gelatin or surface sizing agents such as alkyl ketene dimmer (AKD) or acrylic co-polymers. Surface sizing agents are amphilic molecules, having both water-loving and water-repelling ends. The sizing agent adheres to substrate fibers and forms a film, resulting in a smooth finish. Sizing improves the surface strength, printability, and water resistance of the paper or material to which it is applied. In our sizing solution, optical brighteners (OBA's) are added to improve the opacity material surface.   
Washable Tempera: These paints are virtually odorless, and they clean up with water, making them ideal for use with smaller children.
Non-toxic. CPSIA-compliant.
Note - All Tempera paints contain organic compounds that make them safe to use, even if ingested, but this also means they eventually will spoil. To prevent spoilage, we recommend that you close the lid tightly after use and avoid returning unused liquid Tempera to its original container after exposure to air.
Always store Tempera paints in their original containers in a cool, dry place.
Application
Tempera paint dries rapidly. It is normally applied in thin, semi-opaque or transparent layers. Tempera painting allows for great precision when used with traditional techniques that require the application of numerous small brush strokes applied in a cross hatching technique. When dry it produces a smooth matt finish. Because it cannot be applied in thick layers as oil paints can, Tempera paintings rarely have the deep color saturation that oil painting can achieve. In this respect the colors of an unvarnished Tempera painting resemble pastel, although the colors deepen if a varnish is applied. On the other hand Tempera colors do not change over time, whereas oil paintings darken, yellow, and become transparent with age.
Composition
Both Tempera and Acrylic paints that we produce are water based and can be thinned down with a small amount of Water.
Acrylic paint however is made from a complex chemical reaction producing a emulsion,(one liquid suspended equally though another) from resin and then mixed with pigment.
Drying/ Finish
Acrylic paints dry quickly, depending on how much water is mixed in with the paint. Tempera paints also dry quickly. When acrylic paints dry, they dry into a glossy rubber compound that is waterproof. Acrylic paint can dry smooth or textured, depending on how the artist applies the paint. Tempera paint dries into a smooth matte finish because it forces the painter to add smooth glazes to reach the desired tone.
 
Our acrylic paints are very versatile, depending on the amount of water added will make the medium opaque, semi- transparent and transparent, which allows them to be used in thick chunks of paint, or  allows the delicate layering process similar to water color painting. Tempera painting is inflexible. The paint must be applied in layers that cross- hatch, to develop into an opaque color. Acrylic paints can be applied to any surface, as long as Acrylic Gesso is applied, where tempera  paint only really adheres to solid surfaces.
 
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