The invention provides automobile door sealing rubber. The automobile door sealing rubber is characterized by being prepared from the following components in parts by weight: 30 to 50 parts of
basalt fiber, 15 to 23 parts of butadiene-
acrylonitrile rubber, 12 to 18 parts of flake
vermiculite, 4 to 7 parts of
cadmium diethyldithiocarbamate, 3 to 5 parts of
sulfur, 6 to 8 parts of high-wear-resisting
carbon black, 1 to 3 parts of an anti-aging agent and 0.5 to 1 part of a defoaming agent. According to the automobile door sealing rubber provided by the invention, the flake
vermiculite is added and is then blended with other components, so that the prepared automobile door sealing rubber has very strong heat preservation and heat insulation properties; the flake
vermiculite added in the invention can play roles of a reinforcing agent and a heat stabilizer; by utilizing the excellent properties of good high
temperature resistance,
oxidation resistance,
radiation resistance, heat insulation and
noise insulation, good filterability, high compression strength and
shear strength, good insulativity, high milk corrosivity and
chemical stability and applicability in use under various environments and the like of the
basalt fiber, the prepared automobile door sealing rubber is good in sealing property, is high in
temperature resistance and is high in compression strength.