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Bonded Seals / Dowty Seals
Bonded Sealing Washers offers an ideal means of providing reliable sealing at both high and low temperature and pressure whilst also acting as an excellent pressure gasket to good work resistance range. A Bonded Seal is a type of washer used to provide a seal around a screw or bolt. They are also known as dowty seals or dowty washers or bonded seals.
The bonded seal consists of an outer annular ring of a hard material, typically steel and an inner annular ring of an elastomeric material that acts as a gasket. It is the compression of the elastomeric part between the faces of the part on the either side of the bonded seal that provides the sealing action. A wide range of Bonded Seals / Dowty Seals are available.