Adhesive
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Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation.
Nitrocellulose adhesive dispensed from a tube
Liquid animal glue
A reconstruction of Ötzi's axe, which used pitch as an adhesive
Beeswax
Animal glue
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Animal glue is an adhesive that is created by prolonged boiling of animal connective tissue in a process called rendering. In addition to being used as an adhesive, it is used for coating and sizing,
Adhesive
…Khan's hordes. These bows were made of a bamboo core, with horn on the belly (facing towards the archer) and sinew on the back, bound together with animal glue. In Europe, glue fell into disuse until the period AD 1500–1700. At this time, world-renowned cabinet and furniture makers such as Thomas Chippendale…
Animal glue in granules
WW2 poster from the UK, noting the use of waste bones in making glue.
Hide glue at room temperature
Hot hide glue