Hybrid elastomeric material

A hybrid elastomeric material, in particular for use as a sealing material in fuel cells, wherein the hybrid elastomeric material comprises 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,

• wherein the siloxane polymeric material comprises
• (i) a siloxane polymer of formula (I)
• wherein the radicals R independent of one another mean H, CH3, vinyl, phenyl, (CH2)xCH3, and/or C3H6O(C2H4O)y(C3H5O)zR′;
• wherein
• m=1 to about 100,
• n=0 to 1000,
• x=1 to 30,
• y=0 to 20,
• z=0 to 30,
• and wherein the sum of m+n≥3 and R′ mean H, CH3, or (CH2)xCH3;
• as well as (ii) a siloxane of formula (II)
• wherein the radicals R1 independent of one another each mean CH3, vinyl, and phenyl and n1 has a value in the range of 0 to 3000;
• wherein the polyolefin elastomeric material is 1,2-polybutadiene, and
• wherein the sum of the proportions of the siloxane polymer of formula (I) and the siloxane of formula (II) is about 50% by weight to about 90% by weight, relative to the total content of the siloxane polymeric material and the polyolefin elastomeric material.