Lime color

Recipe with animal glue

(yields 10 liters of paint)
10 kg of chalk
about 5 l of water
2 hg animal glue

Recipe with cellulose glue

(yields 15 liters of paint)
10 kg of chalk
about 5 l of water
glue solution: 2hg cellulose glue and about 5 l of water, which must be added to the paste because it has a different density than the glue.

Glue paint with cellulose glue as a binder is more manageable and is therefore recommended for amateurs.
Both recipes cover an area of about 20-30 square meters.

Here's how to do it:

In a container that holds at least 15 liters, pour in 5 liters of cold water. Carefully add the chalk so that a conical peak forms. Do not stir the mixture, as this will create lumps in the paint. Let it rest overnight so that the chalk can swell and absorb the water.

The animal glue is soaked on the same day as the chalk. Place the glue in a stainless steel container, pour in water so that it just covers, and let it rest until the next day. The glue is heated the next day in a water bath until it becomes easily pourable. The water bath must not exceed 60 degrees.
If cellulose glue is used, follow the instructions on the packaging.

Remove the glue from the water bath and pour it into the chalk solution. Stir vigorously. Use a drill with a paint mixer to avoid lumps in the paint.