Spatula, Porcelain, 8", Flat end with Knob Porcelain Spatula, 8" Glazed porcelain spatula, with one long flat end, features a knob on the other end for easy grip. Measures 8" (20cm) long. Features: Thermal Shock Resistance - average coefficient of expansion from 20°C to 200°C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested in our factory. Glaze - No softening occurs up to 1000°C, and it is extremely white. Resistance to Chemical Action - Resistance to acids and alkalies is excellent, except for hydrofluoric acid. Used by: Chemists, Pharmacists, Cooks, Aromatherapists, and Herbs for home capsule and supplement making. Med Lab Supply carries a complete line of: Laboratory Glassware, Lab Plastic and Porcelainware, 100% Pure Carrier and Essential Oils, Laboratory Equipment, and Chemicals, Reagents, and Solvents