Science Educational Products - Superabsorbent Diaper Polymer 1 Lb Sodium Polyacrylate - One Pound of the Superabsorbent Polymer One pound of the Superabsorbent Polymer - sodium polyacrylate, also known as the diaper polymer. This premium grind immediately turns into a gel, great for use by magicians and science classes. This chemical comes in many different grinds, this is not the grind that makes instant snow. This is the polymer that is used baby diapers and many other industrial uses. 1 oz can absorb 100 oz in water or more. Sodium polyacrylate, also known as the diaper polymer Also Great for Making Slime.