Lavorazione
Passo 1: 40 g casein (#63200) is first mixed with very little cold water, and then 250 ml moderately warm water is added.
Passo 2: In the meantime 10 g ammonium carbonate (#64021) is dissolved in a few drops of water, and after all the lumps have been pressed out, the solution is poured into the casein. Promptly there is effervescence; the carbonic acid escapes. After a little stiring, as soon as there is no longer any foam, the casein solution is ready. Ammonia casein is easily kept undiluted in a clean, well-corked bottle. Water may be added immediately before use. For wall purposes, fill up to 1 liter with water.
Passo 3: Ammonia-casein is not very stable when prepared with ammonium carbonate, even when preserved it can turn very thin relatively quickly. Advantage: Its solvent is perfectly harmless and it evaporates completely. The same is not true of soda and borax solutions.
Non ci assumiamo alcuna responsabilità per l'istruzioni di elaborazione sopra descritte. In ogni caso, raccomandiamo la produzione e la valutazione delle superfici dei campioni.
Elenco prodotti
Autore: Doerner
