Product Introduction KCl-PHPA Powder Mud Additive for Reactive Shale Drilling KCl can provide ionic inhibition while PHPA supports coating, encapsulation, and solids behavior in many shale-control mud designs. BLUFLOC powder PHPA is described in the supplied family TDS as a water-soluble copolymer of anionic character used in drilling-fluid and selected oilfield applications. The four powder grades span very-high and ultra-high molecular-weight classes with medium or high