Product Introduction High Molecular Weight PHPA Powder for Clay Dispersion Control Clay dispersion increases fine solids, dilution, waste, and rheology while degrading hole condition in reactive intervals. 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 charge.