Sculpture House - Roman Casting Wax - 10 lbs - Roman Wax from Sculpture House is a hard casting wax used for the investment process in the lost wax casting process. Color may vary from purple to black but its brittleness will remain the same. Usually used for fine detailing before casting rather than for direct modeling. Roman Casting Wax is A strong, firm, professional casting wax. Roman Casting Wax can also be used for carving and modeling small objects. Made in the USA.