To this panel, he would scrub on several layers of a thin animal hide glue.
Hide glue is still used, but this glue often cannot withstand the heat generated during machine sanding and is not waterproof.
The plaster is modified with the addition of animal glues such as isinglass or hide glue.
In the 16th century, hide glue was used in the construction of violins.
Specific types include hide glue, bone glue, fish glue, rabbit skin glue.
Where hide glue is in occasional use, excess glue may be held in a freezer, to prevent spoilage from the growth of microorganisms.
Hide glue creates a somewhat brittle joint, so a strong shock will often cause a very clean break along the joint.
Hide glue joints are easy to repair, by just heating and adding more hide glue.
Ideally the top is glued to the ribs and linings with slightly diluted hide glue, to allow future removal with minimal damage.
Some workers prefer to use rabbit-skin glue (as used in bookbinding) rather than pearl or hide glue, giving a more flexible result.