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KOSTER Sewer and Shaft Mortar is a water tight, fast curing and fast setting restoration mortar for sewers and shafts. KOSTER Sewer and Shaft Mortar is fiber reinforced and develops a high compressive strength.
Coverage: Approx. 0.5 cubic ft per bag as repair mortar. Approx. 3.7 lb/sq ft per 1/2-in layer thickness.
