Abstract: Pot or bowl-shaped support for structures, especially bridge structures, consisting of a pot for receiving a pressure pad from an elastomer upon which rests a lid, which transmits the load of the structure or the bridge resting upon it to a foundation, abutment or pillar or the like, and in which an annular gap between the lid and the pot wall is sealed by means of an annular seal, where the annular seal is designed as a open, single part compact ring with rectangular cross-section which consists of a PTFE-material with amorphous consistency filled with a powdery substrate. Herein the share of the filler substrate amounts preferably to between 15 and 40% of the total volume of the annular seal and the filler substrate has a share of 50 to 100% of pulverized coal.