Make homemade candles with this vegetable wax filler Filler wax is a specific type of wax that is used to fill cavities in candles. This wax is generally harder than the wax used to melt candles, making it easier to fill holes or cracks in candles. Wax does not shrink on cooling. Ideal for making poured candles. It does not emit an odor during its combustion. The wax stains easily since it is white in color. Its shade allows you to create candles with a very beautiful range of colors in pastel tones. Melting point: between 51°C and 53°C. 100% Soy.