A paste medium of finely ground calcite in bodied linseed oil. Use to extend paint and form impastos while making paint longer. Makes colours slightly transparent allowing greater control over tints without whites. Softer than Impasto Medium, makes colours slightly transparent allowing greater control over tints without whites. Thin with solvent or oil. Velázquez Medium is Softer than Impasto Medium, this flowing paste makes colours slightly transparent while allowing you to build impasto, thick applications of paint. When added to oil paint it does not alter the colour temperature. It can be thinned with solvent or oil. Depending upon the proportion added to paint, it does not affect the drying time significantly. Velázquez Medium does not contain stearates, solvents, driers or natural or synthetic resins, so it is safe to add to oil paint without the worry of cracking or delaminating. *Long refers to the consistency of paint that displays tall peaks when a palette knife is pressed to its surface and lifted. Long paint is also described as being a "ropy" and refers to a stringy quality, like that of honey. Paint that behaves in this way is said to have long rheology. Short rheology refers to paint that exhibits a more buttery consistency, typical of most commercial oil paint. Rheology is the study of how substances flow, such as liquids and soft solids that flow rather than deform elastically.
