Fleck's self-cure Yellow zinc phosphate cement Kit: 8 ounces Powder and 2 - 35 ml bottles of Liquid. Formulated with zinc phosphate. Used for cementing procedures. Suitable for use as a base for filling materials. Guards against disintegration. Fleck's Zinc Phosphate Cement is the leading choice among all zinc phosphate cement varieties, with its exceptional strength, dissolution resistance, and high retention. It is presented in a conventional powder and liquid system and is available in a wide selection of shades close to the color of natural teeth.Each Ortho Pak contains 0.03 kg of powder and 2 (35 ml) of liquid.