Hyde glue, a protein-based substance, is essential in the application of veneers and marquetry. Unlike modern adhesives, hyde glue does not create a permanent bond between wood surfaces. This allows furniture makers to repair and restore furniture by isolating damaged areas.
In the craft of marquetry, one can understand why this ability to reverse the bond in isolated areas is so vitally important. With such a tedious and detail-intensive process, it's almost inevitable that mistakes will be made. A tiny flower petal could easily be improperly placed. With hyde glue, repairing a mistake is as simple as adding moisture and heat. With white glue, fixing the error would mean restarting the entire project.