Mill Rubber SBR-1009 and "Panarez" 6-210 (first portion) on a rubber mill. Add heptane and let swell overnight. Then mix on a Cowles Dissolve. Heat to 140'F (60'C). Heat "Panarez" 6-210 (second portion) to 210'F (99'C) to melt it and then stir into above mix. Cool to 140'F (60'C) and add "Thixcin" R. Cool overnight to room temperature. Add "Hydrite" Clay and mix in a change can mixer.