Slips, Engobes and Terra Sigillatas - Alfred's Clay Store

Fillers• Silica is the most commonly used– Promotes hardness (depending on the amount of vitrification)– Reduces drying shrinkage– Promotes whiteness• Pyrax can also be used (though not as white as flint)• Talc (color killer)• Wollastonite• Calcined clay• Filler content usually ranges from 15-30%