Heat petrolatum, "Tween" 60, "Modulan" and "OHlan^T^M" to 80'C with slow, wide blade stirring. When molten and uniform. Add corn starch and zinc oxide in small portions. Continue stirring and cooling to 60'C. Pass through roller mill until desired particle size is obtained. Variations: For greater lubricity, replace part of petrolatum with "Amerlate" P. For reduced oiliness, replace part of petrolatum with "Acetulan."