We are one of leading Mine owner, Manufacturer and professional exporter of Gilsonite "Natural Bitumen or Natural Asphalt products in different grades for various applications.Our Gilsonite is used in drilling mud fluids and oil well cementing. The addition of specially-treated Gilsonite to water-based drilling fluids helps minimize hole washout by stabilizing troublesome shale, and seals off highly permeable sands while reducing torque and drag. The addition of Gilsonite to oil well cements reduces slurry weight without loss of compressive strength and acts as an effective bridging and plugging agent to seal fractures in weak formations while cementing.1-Gilsonite: API Grade "HM" &＃39;High Melting Point&＃39; Powder: +200mesh Packaging: 50 Lbs, Palletized, Shrieked, Belts 2-FLC "Fluid Loss Controller", Oil Based Mud, Water Based Mud Powder: +200mesh , HM "High Melting Point" Grade: CH-109 GR 3-FLC "Fluid Loss Controller", Oil Based Mud, Water Based Mud Powder: +200mesh HT "high temperature", HM "High Melting Point", HV" High Viscosity" Grade: CH- 109 GWany question please feel free to contact uswhats app: 989138294122Best Regards Soheila Talebi