Most important is to obey the following fundamental rules:
1. Water-soluble colours should be washed out with water.
2. Acrylic colour, as long as it is wet, should be washed out with water. When dried up it can only be dissolved with special cleaning agents.
3. Oil colours should be wiped off thoroughly with a piece of cloth, then washed with brush soap.
4. Hairs, bristles and synthetic fibres should be cleaned with a special soap (product ref. 4033 and 4433), that cleans and maintains the brush head on the basis of vegetable oils, and warm water until the soap begins to produce white lather. Do not use strongly fat removing soaps! Especially natural hair tends to break if they are missing their protecting fat contents. By that you elevate the life as well as the suppleness of your brushes.
5. To wash out the brush, rub the hair body of the brush carefully and remove the remains of pigment that chiefly stick to the edge of the ferrule.
6. Afterwards wipe the brush with a fine piece of cloth and bring it to its original shape. Artists call this procedure “dressing”.
7. Let the brush dry completely before you use it again. Don’t put it on the radiator to dry. There the hair will dry too quickly, the handle will shrink, and the brush head will come loose.