Castrol Pyroplex Blue is the ultimate lubricant for challenging on and off highway environments where water is present. Castrol Pyroplex Blue's unique multifunctional solid lubricant additive builds up tack and adhesion when exposed to water and humidity in saturated environments, while resisting softening and washing out. In high temperature environments, film strength is increased between metal surfaces, and the affinity for metal surfaces is enhanced. This produces a slippery physical barrier of protection. (Note: ASTM wheel-bearing life performance results on second page). Castrol Pyroplex Blue's Dependable performance under varying conditions reduces maintenance costs while extending equipment life. Castrol Pyroplex Blue's environmental impact is reduced through the nonutilization of Antimony, Barium, Lead, or Chlorinated Compounds.