Glue is a liquid that is created by leading Horses into the Smeltery while there is molten metal inside it. This is a similar process to the creation of Blood. Glue can be poured into a Casting Table to make Balls of Glue or into a Casting Basin to make Glue Block.
Swimming in glue placed on the ground causes the Hunger and Slowness debuffs to be applied to you.
Ball of Glue
Balls of Glue are made by pouring 1 unit of Glue into a Casting Table. Balls of Glue serve as an alternative for Slimeballs and Raw Rubber/Sticky Resin.