Here’s how to do it:


Step 1: Shake the medium well before use.


Step 2: Now you have different mixing options with oil and/ or resin:

  • For a standard casein tempera binder please mix 10 parts of casein binding medium with 1 part stand linseed oil, (50005) (per volume).
  • For an oil-rich casein tempera the amount of casein binding medium to stand linseed oil can be raised up to 10:3 (per volume).
  • For a small-oil-volume casein tempera please add 1 part of a resin-solution to 10 parts of the standard casein tempera binder (per volume). Suitable resin solutions are 1:3 dilutions of venetian turpentine resin (50073) or dammar in pieces (50093) in oil of turpentine (50024 / 50102) (per weight).                  


Step 3: Now you can grind your colour out of the binder and the pigment. The large Schmincke pigment assortment contain 100 % pure pigment which has not been extended or blended in 48 classical colours in 100 ml jars and in addition 24 specific EXTRA colours like genuine cadmium and cobalt pigments in 50 ml jars. All pigments are finely sifted and of highest possible lightfastness.


The mixing ratio of binder to pigment very much depends on the type of dyestuff. Our recommendation: Start off with the same amount of binder and pigment, then add binder or pigment until the required consistency. The dried streaks of paint should have a smooth surface and do not come off when rubbed with the dry heel of the hand. The self-mixed colours can be diluted with tree time the amount of water if necessary.


Important: The self-mixed tempera binders and the self-grinded tempera colours are intended to be used as soon as possible and should only be stored in screw-top jars for a few days at a cool place.

Please clean working tools as soon as possible with water or water and soap and close the bottle immediately after use. Store in a cool and dry place. Contains:  lactic casein, borax.


Good to know: The pure casein binding medium can get freeze – optimally in small portions – to rise its storage life. Individual pre-tests are required.


Alternative: Maybe you have been getting interested in self-grinding your artists’ colours, but you better like acrylic or gouache (or oil or linoprint), we will encourage you to try our appropriate ready-to-use binders and some pigments from our range. A detailed instruction you will find here



* Hint according to art. 33 regulation (EG) No. 1907/2006 (REACH): The product contains one ingredient (Borax) mentioned in the current appendix 14 (List of SVHC-ingredients, REACH).  Please read the safety data sheet of the product.

Lightfast 2- Casein binding medium

Schmincke binder