Abstract: An elastomeric material is disclosed, which is suitable, in particular, as a sealing material between the fuel cells of a fuel cell stack and the stacks as such, wherein the hybrid elastomeric material includes a hybrid elastomer with a proportion of a siloxane polymeric material and a proportion of a polyolefin elastomeric material, wherein the two materials are crosslinked with one another by addition. Further aspects relate to polyelectrolyte fuel cells, which include sealing elements made of the hybrid elastomeric material, as well as the use of the hybrid elastomeric material in a screen printing process.

Abstract: A cross-linking agent composition including a diamine cross-linking agent, which composition achieves comparable or better values in the ratio of the maximum achievable elongation at break to the heat compression set level in comparison to cross-linking agent compositions having a guanidine accelerator, even with high filler contents of the elastomer materials, includes a diamine cross-linking agent, an accelerator of the type of the 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU), an activator of the pyrrolidone type, as well as a secondary aliphatic amine and/or a tertiary aliphatic amine.

Abstract: In order to make an elastomeric sealing element available which is also suitable, in particular, for sealing tasks, with which the highest thermal and chemical resistance is partially required, and at the same time to save on costs and resources it is suggested that the elastomeric sealing element comprise a first and a second sealing section, wherein the first sealing section is produced with the use of a first elastomeric material containing a first cross-linking system, wherein the second sealing section is produced with the use of a second elastomeric material containing a second cross-linking system, wherein the first and the second sealing sections border directly on one another in a seam area and their elastomeric materials are materially joined to one another, and wherein at least one of the two cross-linking systems comprises, in addition, a cross-linking agent for the respectively other elastomeric material.

Abstract: In order to make an elastomeric sealing element available which is also suitable, in particular, for sealing tasks, with which the highest thermal and chemical resistance is partially required, and at the same time to save on costs and resources it is suggested that the elastomeric sealing element comprise a first and a second sealing section, wherein the first sealing section is produced with the use of a first elastomeric material containing a first cross-linking system, wherein the second sealing section is produced with the use of a second elastomeric material containing a second cross-linking system, wherein the first and the second sealing sections border directly on one another in a seam area and their elastomeric materials are materially joined to one another, and wherein at least one of the two cross-linking systems comprises, in addition, a cross-linking agent for the respectively other elastomeric material.