DESCRIPTION PRE-POLYMERISED HIGH STRENGTH, FREE-FLOWING GROUTING PRODUCT DRUCSTONE-155E is a low viscosity, free-flowing pre-polymer with high early strength which is suitable for repairing concrete blocks, asphalt, renderings, stone, asbestos, cement, wood, concrete, and mortar. It is high penetration allows filling the finest of cracks! DRUCSTONE-155E can be applied in dry as well as damp conditions.