BLUSKY™ FLOWTHANE BI is a general purpose two component Epoxy impregnator/primer. It is a solvented primer for superior penetration. It is carefully formulated using selective Epoxy polymers to give an impregnating primer for Epoxy and PU toppings/coatings. It’s main function is to enhance the bonding between the concrete and Epoxy / PU top coatings .It acts as a general impregnating /penetrating protective primer that protects concrete masonry & metal structures from corrosive soil salts and ingress of subsurface water.