Colophony varnish recipe
• 500 grams colophony (resin)
• 50 grams mastic tears
• 450 grams cold pressed linseed oil
• Heat the linseed oil to 200C
• Slowly add the colophony (resin) and stirred for at least 2 hours
• Allow the oil/resin mix to cool a little. Add the powdered mastic tears last of all and stir for 1 hour
more
• It is extremely important NOT to remove the cooking pot from the stove and place it on a cold
surface. This can cause a violent reaction.
• The still warm, but NOT HOT varnish can then be filtered.