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    AMC DRILL VIS™ is a high molecular weight, powdered polymer which has been developed to improve core recovery, particularly in clays and shales, highly fractured or poorly consolidated formations. It provides cuttings encapsulation as well as helping to stabilise the formation. AMC DRILL VIS™ forms a protective polymer film on the drill pipe and bit as well as on the walls of the bore hole which helps to provide lubrication when diamond drilling in troublesome formations.