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ADVICE ON :
- Salvaging Oils and watercolors
- Starting over in Oils
- Understanding color
- Loosening pastel edges
A. The solidification of tubed oil color is called livering. It's caused by a chemical reaction between impurities in the pigment-especially traces of sulfur and the oil vehicle. As a result, the tubed oil color forms rubbery masses, distorting its handling qualities. Impurities found in the tubed oil color are characteristic of poor, or incomplete, washing of pigments during initial processing. In general, livering tends to occur in lower-grade oil colors- not in colors made of high-quality, properly washed pigments correctly ground in the best oil vehicles.
The same problem can happen with tubed watercolors. Occasionally impure pigments will liver when ground into gum arable, the traditional vehicle for tubed watercolors. Sometimes plasticizers or preservatives are added during production of high-quality artist's watercolors to prevent this.
The same problem can happen with tubed watercolors. Occasionally impure pigments will liver when ground into gum arable, the traditional vehicle for tubed watercolors. Sometimes plasticizers or preservatives are added during production of high-quality artist's watercolors to prevent this.
SALVAGING OPERATIONS
If you're determined to try to save your old paints, here are some suggestions for reclaiming those tube oils (be Sure to wear latex gloves to keep all traces of paint off your hands).
First, you'll need to remove all of the color from the tube and deposit it onto your working palette so you can recondition its consistency