PURPOSE: To provide a press seal wherein fatigue is hard to generate even when sealing work is continued for a long time and only a plurality of seal plate main bodies may be prepared because only the seal plate main body is replaced corresponding to content of sealing.

CONSTITUTION: A support arm 3 is extended from a grip handle 2 and a seal plate main body 4 is attached to the leading end of the support arm 3 in a freely detachable manner so that the seal surface 15 thereof crosses the axial direction of the grip handle 2.