Muller - a piece of equipment (typically made from borosilicate glass) used for grinding pigments against a slab.
Palette Knife - is a blunt tool used for mixing or applying paint, with a flexible steel blade.
Tempered Glass - safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass.
Concentration - is defined as the abundance of a constituent divided by the total volume of a mixture.
Lightfastness - the ability of a pigment to retain its original color appearance under exposure to light.
Pigment - material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption.
"Hue" - used to indicate that the original pigmentation ingredient, often toxic, has been replaced by safer (or cheaper) alternatives whilst retaining the hue of the original.
Oil Paint - is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil.
Emulsion - is a mixture of two or more immiscible (un-blendable) liquids.
Acrylic Paint - is fast drying paint containing pigment suspended in an acrylic polymer emulsion.
Binder - commonly referred to as the vehicle, is the actual film forming component of paint.
Linseed Oil - oil that hardens to a tough, solid film after a period of exposure to air via polymerization.
Mineral Spirits - is a petroleum distillate commonly used as a paint thinner.