Art Spectrum Lean Medium - 100ml
Art Spectrum Reduced Odour Lean Medium
A very low odour alternative to Medium No.1, with similar properties.
The ‘lean to fat’ rule: When one layer of oil paint contains an equal amount of oil as the next layer, the top layer will dry while the bottom layer will be deprived of oxygen and remain wet.
This will cause wrinkling and eventually cracking.
To prevent this problem, use lean first and fat for subsequent layers.
This will give an even tension throughout the painting.
This method is known as ‘lean to fat’.