External images
	Leather Scale Armor, ca. 6th century B.C. Eurasian(boiled leather is used for this armor)[1]

Boiled leather, sometimes called cuir bouilli, was a historical construction material for armour. It consists of thick leather, boiled in water (some sources hold that oil and wax were used as well, others posit the use of ammonia from fermented animal urine^{[citation needed]}). The boiling causes the leather to be harder and more brittle. The boiled leather can be fashioned into lames/scales to make lamellar or scale armor. Or, because the leather remains flexible for a short time after boiling, it can be molded into larger 'plates'.

Cuir bouilli has also been employed to bind books.

[edit] External links

• Water hardened leather for armour
• Boiled leather in wax
• Cuir Bouilli/Hardened Leather FAQ

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