has gloss | eng: A living hinge is a thin flexible hinge (flexure bearing) made from plastic (rather than cloth, leather, or some other substance) that joins two rigid plastic parts together, allowing them to bend along the line of the hinge. It is typically manufactured in an injection molding operation that creates all three parts at one time as a single part, and if correctly designed and constructed, it can remain functional over the life of the part. Polyethylene and polypropylene are considered to be the best resins for living hinges, due to their excellent fatigue resistance. |