WESTCO™ P-44

2,2' dibenzamido diphenyl disulphide blended with a synergistic activator, inert carrier and organic dispersants. WESTCO P-44 FLAKES catalytically promotes molecular chain scission during mastication, thereby reducing mastication time and power consumption, giving lower production costs and increased production capacity. The peptizing action of WESTCO P-44 FLAKES is inhibited by sulphur and the viscosity of compounded stocks is therefore stable on storage. Furnace blacks, mineral fillers, zinc oxide and other materials likely to be present in first stage mixing operations or during the early part of high-speed single-stage mixing have little or no effect on performance of WESTCO P-44 FLAKES. Antioxidants generally retard the peptizing action and they should be added later in the cycle, when the product is used in direct compounding. The effects on rate and state of cure and on the properties of vulcanized compounds are negligible.