Dierenlijm

Dierenlijm, also known as animal glue, is a type of adhesive derived from animal collagen. It is historically one of the oldest adhesives known and was widely used before the advent of synthetic glues. The primary source materials for dierenlijm are animal bones, hides, and sinews, which are boiled in water to extract the gelatin. This gelatin is then processed, typically by drying into sheets or granules, to create the final product.

Dierenlijm is water-soluble and can be reactivated by heating with water. This property makes it reversible, meaning objects glued with it can often be separated by applying moisture and heat, which is advantageous in restoration and repair. It has a characteristic odor, often described as animalistic or slightly fishy, which is a byproduct of its organic origin. The strength and flexibility of dierenlijm can vary depending on the source material and manufacturing process. It is known for its strong bond but can be brittle when fully cured. Historically, it was used in woodworking, bookbinding, and as a binder in paints. Today, its use is more specialized, often favored in art conservation, musical instrument repair, and certain artisanal crafts where its reversible nature and traditional properties are desired.