Hudlim

Animal glue, in powder form, which provides a very strong, flexible, and thin joint.

Used for furniture carpentry, intarsia work, wooden instruments such as guitars, violins, and other forms of gluing that should be reversible. The glue is mixed with water and heated, typically double the weight of water.
Lim is soaked for about an hour before being heated to a maximum of 65°C. A water bath is recommended.
Bloom-tal 280.