O-Rings, made of an elastomeric material, are unlike other materials. The reason for this is because in order for an O-Ring to function properly it has to deform. Once an O-Ring is installed into a gland it is then compressed resulting in zero clearance.

Wondering what characteristics O-Ring seals have? The article written today will cover multiple different elements of O-Rings.

An O-Ring seal is a means for closing off a passageway preventing an unwanted escape or loss of fluid. The seal consists of an O-Ring installed in a gland and is exactly that – a circular run in which the elastomeric material has a section that is virtually circle. The gland is the cavity (usually within metal) into which the O-Ring is placed. The combination of these two elements comprises an O-Ring seal.