Firstly, you should protect your workstation with a handicraft mat.
Mix Raysin and water to form a creamy mixture. Follow the instructions on the pack!
Raysin white mixing ratio:
280 ml water + 1kg powder = 650 ml casting compound (1x water + 3.5x powder)
Mixing ratio Raysin Black:
250 ml water + 1kg powder = 520 ml casting compound (1x water + 4x powder)
Carefully pour the mixture into the mould. Tap the filled mould lightly on the surface several times so that the air bubbles rise.
After approx. 30 minutes, carefully remove the castings from the mould and sand the edges smooth with sandpaper.
The casting moulds must be cleaned thoroughly after use!