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Recipe: Cooking for Falun Red / Falu Rödfärg

In Falun were the largest copper mines in Northern Europe. There are still remains of Caput Mortuum in the rubbish. In the copper extraction from the ore there is a violet red iron oxide as a by-product, this by-product is called Caput Mortuum. The Swedes have successfully protected their wooden houses with their local pigment and other materials available in Sweden such as linseed oil and rye flour for centuries. Still today, Caput Mortuum is made in this way as before. We offer Caput Mortuum in different shades (#48710, #48750). The iron oxide (#48220) has a similar color.

Processing

First, put the water in a big enough pot, then stir the ferrous sulfate (#64200) and bring to a boil. Mix the wheat or rye flour with cold water until it becomes a lump-free, runny pulp. Step 1#186: First, put the water in a big enough pot, then stir the ferrous sulfate (#64200) and bring to a boil. Mix the wheat or rye flour with cold water until it becomes a lump-free, runny pulp.
Slowly mix the flour puree into the boiling water and simmer gently for 5 minutes, continuously stirring. Bit by bit, stir the pigment (originally Caput Mortuum reddish) into the mixture and simmer gently for another 15 minutes, continuously stirring. Step 2#251: Slowly mix the flour puree into the boiling water and simmer gently for 5 minutes, continuously stirring. Bit by bit, stir the pigment (originally Caput Mortuum reddish) into the mixture and simmer gently for another 15 minutes, continuously stirring.
Take the pot off the stove and work the linseed oil (#73020) into the mixture. Slowly add the oil in a long, thin trickle, strongly stirring all the time to avoid the formation of an oily film. Step 3#193: Take the pot off the stove and work the linseed oil (#73020) into the mixture. Slowly add the oil in a long, thin trickle, strongly stirring all the time to avoid the formation of an oily film.
The calculated spreading rate is about 100-150 ml/m² per coat. Step 4#63: The calculated spreading rate is about 100-150 ml/m² per coat.

Ingredients

18 % Caput Mortuum Synthetic 180 M (#48220)
Caput Mortuum violet (#48750)
2 % Iron (II) Sulphate (#64200)
8 % Linseed Oil, cold-pressed (#73054)
67 % Water
5 % wheat flour or rye flour (typ 1150)
Cooking pot

Note

Adding 6% Zinc Sulphate Heptahydrate (#64351) will enhance the protection in exterior areas.

We assume no liability for the processing instructions described above. In any case, we recommend the production and evaluation of sample surfaces.

Product list

Author: Kremer Pigmente