https://www.mccoys.com/shop/p/7775539-052303-36/rutland-dry-mix-211-21125-refractory-mortar-dark-gray-solid-25-lb-tub
Dry Mix 211 21125 Refractory Mortar, Dark Gray, Solid, 2.5 lb Tub
Sku: 7775539-052303-36
$17.62
38 Available at
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Estimated Arrival On: 12/11/2025
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.
- Needs to be mixed with water (8 oz of water)
- Can be painted once dry
- For indoor and outdoor use
- Made in the USA
Net Content
2.5
Container Type
Tub
Form
Solid
Color
Dark Gray
Compositions
Cement, Alumina, Chemicals, Dextrin, Mullite, Kaolin
Specific Gravity
2.3 to 2.7
pH Range
6 to 8
Drying Time
24
Temperature Rating
2550
Applicable Materials
Masonry
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