This product is in the process of recycled rubber from thickening, softening effect. Containing a large amount of the resin acids and a small amount of fatty acids. Its activity is large, the activator is a good aid. The amount properly, can improve process performance recycled rubber to improve elongation at break, excessive amount of recycled rubber roll easily stick, aging coefficient decreased physical properties also declined. In general tire reclaimed rubber in class with 3--5% recycled rubber footwear with 2--4% is appropriate. Quality Index: Project AB solid gloss black exterior gloss black solid Softening Point (R & B) ℃ ≥ 73 68 acid value (mgKOH / g) ≥ 135 130 mechanical impurities,% ≤ 0.5 10