No abstract

SynopsisThe corrosion of steel by nitrile elastomer oil seals prompted a laboratory study of the corrosivity of numerous compounding ingredients and nitrile polymers. Groups of materials studied in this investigation were plasticizers, antioxidants, black fillers, nonblack fillers, curing systems, and base polymers. A corrosion test procedure utilizing a benchtype corrosion chamber was developed, and a corrosion rating system was established. All materials were rated according to their corrosivity under conditions of 100% R. H., and 100°F. for 96 hr. From these data it was possible to formulate several noncorrosive seal compounds without the use of corrosion inhibitors.

No abstract