| abstract |
Provided is an acrylic rubber bale having excellent Banbury processability and water resistance. An acrylic rubber bale according to the present invention is composed of acrylic rubber having a ion reactive group, wherein: the gel content of a methyl ethyl ketone-insoluble fraction is 15 wt% or less, optionally, all values measured in 20 spots are in a range of (average value ± 5) wt%, the pH is 6 or less, the ash content is between 0.0005 wt% and 0.2 wt%, and the total content of sodium, sulfur, calcium, magnesium and phosphorus in the ash is 90 wt% or more. |