Handy Tips for Acrylic Painters

All paint is a combination of a ‘glue’ and pigment. The glue in acrylic paint is a plastic consisting of microscopic spheres of polymer suspended in water. When the wa-ter evaporates as the paint dries the spheres come to-gether to bind the pigment. Make sure you use only a little water to thin your paints so the ratio of spheres to water is not diluted. This dilution can affect the paint’s bonding ability. Use Polymer Medium as a thinner in-stead.
Polymer Medium is available in Matte and Gloss and may also be used for glazes. Matte Medium is dull be-cause it contains a powder made of ground crustacea. The microscopic particles of the powder have jagged edges which hinder light refraction, thus giving a flat finish. Gloss Medium is clear and therefore shiny. Don’t use Matte Medium for thick or multi-layered glazes. The effect of the powder clouds the layers thus dulling the colours and forming a ’fogged’ appearance..