| 摘要 |
A door weatherstrip includes a mounted base portion which is mounted along an outer circumference of a door frame, and a seal portion which extends in an outer circumferential direction of a door from the mounted base portion. The mounted base portion includes a base bottom portion, a vehicle-interior side wall portion and a vehicle-exterior side wall portion, and an isolating wall portion. The mounted base portion is made from an EPDM sponge rubber material into which polyethylene is mixed to have a specific gravity of 0.2 or larger and smaller than 0.45 and a low expansion stress of 200 kPa or larger. The seal portion is made from an EPDM sponge rubber material having a specific gravity of 0.45 or larger and 1.0 or smaller and a low expansion stress of 120 kPa or larger and smaller than 200 kPa. Thus, the door weatherstrip is provided in which the specific gravity of the mounted base portion is made smaller than the specific gravity of the seal portion and a material rigidity of the mounted base portion is larger than a material rigidity of the seal portion.
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