abstract |
The present invention relates to an EPDM rubber composition for weather strip sponges, and more particularly to a rubber composition for a weather strip sponge having a Mooney viscosity (ML 1 + 8 at 125 ° C) value of 90 or more and a 5-ethylidene-2-norbornene (ENB) EPDM rubber compositions containing EPDM rubber having a weight percentage of free sulfur and free-sulfur and 1,6-bis (N, N-dibenzylthiocarbamoyldithio) -hexane (BDBzTH). The EPDM rubber composition of the present invention is useful as a material of a weather strip sponge portion of an automobile since it has an effect of improving the compression set and a problem of solving the discoloration problem of the EPDM rubber. |