A white pigment as a means of preventing fires? How is that possible? The answer lies in the specific composition and structure of CASUL, namely its high water of crystallisation content (45%) and its high ‘dehydration property’. This combination ensures that water is emitted into the atmosphere even when temperatures are relatively low. The result is an effective flame-retardant surface. It is, therefore, hardly surprising that the demand for CASUL as an ingredient in fire protection systems is growing all the time. What’s more, it is an ideal substance for coating fireproof materials or for being used as an ingredient in such products.