It might also be worth adding to the document the other red oil recipe posted by Salopian:
"Sheraton, the furniture maker used 'red oil' to colour mahogany. Here is a modified version of his 'red oil' recipe.
Take 4oz of alkanet root, broken into short strips,as much opened with the hand as possible, so that the bark of the root which tinges the oil may fly off, steep in 1 pint of raw linseed oil to which you have added 1 tablespoon of the oil of the spruce, steep for a week and strain it through a cloth.
This makes a strong colour, you may have to dilute the colour with more linseed oil to suit your need. Oil of the spruce I believe is turpentine."
However it seems that spirits of turpentine, aka turpentine, is quite different from "oil of the spruce". Apparently, turpentine oil is made from the resin of the pine tree, while pine oil or "spruce oil" is distilled from the needles. Turpentine is a volatile and flammable liquid, while pine oil is a relatively stable liquid.
Last edited by JJJ; 08/24/23 09:13 PM.
