In the past, pigments sold in bulk. To boil his own red paint they used a recipe that looked something like this:
Recipe for 50 kg color
Enough for approx: 150 m2
ingredients:
33 l water
2.5 kg of wheat flour or rye flour
10 kg red paint pigments
1 kg copperas FeSO4
4 kg linseed oil
Note:
Bring to boil 28 liters of water
Stir the flour into 5 liters of water and whisk it
Let cook, stirring for 15 minutes
Add the pigment and copperas
Boil while stirring for 15 minutes
Add the linseed oil
Boil for another 15 minutes while stirring
Add about 2 cups ev soapy water for better emulsification (solution) of linseed oil
Once the paint has cooled, the finished painting.
