Rutland Dry Mix 211 21125 Refractory Mortar, Dark Gray, Solid, 2.5 lb Tub

Rutland Dry Mix 211® is a refractory mortar ideal for joining or repairing fire brick masonry flue tile in any gas or wood fireplace and wood, coal or pellet stove chimney. Just add water, mix and trowel on to seal and join flue tiles. It can also be used as a parge coating (thin overcoat) when building fireboxes to give your fireplace a nice, even, dark gray finish. Does not require (but is stronger with) heat curing. Meets NFPA 211 standards and NYSCMA Tek Spec 4.0.