Product and process for protecting split line of a movable nozzle

摘要: Compositions consisting essentially of about 1 weight percent carbon black,rom 20 to 35 polytetrafluoroethylene and from 79 64 a material selected the group isobutylene-isoprene copolymer ethylene-propylene rubber are disclosed as being useful protective fillers in situations where filler is subjected high temperatures pressures.