REF

Cranfield
REF
Extra heavy copperplate oil available in 500ml lever lid tin
Extra thick oil used to modify the viscosity of etching inks or any oil-based printmaking ink.
It is only packaged in tins because it is too thick to be bottled!
Because of its very high viscosity, this oil will increase the tackiness of an ink considered too weak.
Cranfield oils are made from linseed oil and are available in 4 levels of increasing viscosity: Light copperplate Oil < Medium copperplate Oil < Heavy copperplate Oil < Extra heavy copperplate Oil.
Depending on the nature of the ink to be modified, or the initial viscosity of the ink, the addition of one of these oils will increase or reduce the viscosity of the ink after preparation.
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