Composi-Mold Mould Release For ComposiStone, Clear Casting Plastic, Concretes and Plasters Vegetable Oil based - Mould Release allows you to easily remove original and casted parts from your ComposiMold mould. Safe for use with food. Directions When Making Your Mould: Using the included dauber, apply a thin even coat to your original part prior to spraying Bubble Buster. Pour your melted ComposiMold. Directions When Making Your Casts: Apply a thin even coat to the mould cavity before pouring your casting material. Net: 4 fl oz (118ml)