Product Introduction PHPA Powder for Mineral Exploration Drilling Hard-rock and altered-clay intervals can require different balances of lubrication, carrying capacity, bore stability, and sample preservation. 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