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Rutland Castable Refractory Cement - Tub

Rutland Castable Refractory Cement - Tub

Regular price $71.52
Regular price Sale price $71.52
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Using our Rutland Products you can Keep your Fire-Burning  Equipment operating at peak efficiency. Repair and maintain your fireplace, chimney, wood stove, or gas stove like new RUTLAND Castable Refractory Cement.

RUTLAND Castable Refractory Cement is an exceptionally strong dry-mix cement that chemically sets and dries as hard as a brick. Just add water! Perfect for casting into custom designs because it holds its shape while drying, just add water. It can even be used as the sole material when casting a solid stove bed or outdoor oven. Also works to fill large holes or cracks in masonry, replace mortar, and for tuckpointing


  • 12-1/2 lb Tub or 25 lb Tub
  • Rated up to 2200°F (1204°C)
  • Color may vary
  • It May be painted once dry
  • Minimum 24-hour dry time
  • Does not require heat to cure
  • Approximate coverage: 12-1/2 lb will cast a 12″ x 12″ x 1-1/2″ square
  • Indoor and outdoor use
  • Not for direct food contact
  • Made in the USA

WARNING: This product can expose you to chemicals including Crystalline Silica, which is known to the State of California to cause cancer. For more information, go to CA Prop 65 Warning

Documents & Files


Stir the dry contents of the container thoroughly. Using a plastic bucket or container, add one quart of cool, clean water per 12.5 lbs. dry mix. Only mix an amount that can be used within 20-30 minutes after adding water as the cement sets up fast. Mix thoroughly, taking care not to lose any water. While wearing gloves, take a handful of the material and form it into a ball. Toss the ball an inch into the air a dozen times. If it breaks apart, it is too dry. If it slumps or sags down through the fingers, it is too wet. Excess water lowers the strength of the bond and increases the time needed to set.

Firebox: Dampen work area lightly with water. Put into place and pat it to remove air pockets. Do not smooth to a slick finish as this prevents water from escaping.

Casting: The form or mold must be waterproof to prevent absorption of water from the mixture, as water is needed for the hardening process. Apply release agent, such as cooking spray, to the form or mold. Pour mixture into the mold and smooth by patting thoroughly to remove air pockets, but do not smooth to a slick finish as this prevents water from escaping.

Setting and Firing: Let set at 60°F or above for 24 hours. Do not permit the surface to dry out during this period. Dried castable cement still contains chemically combined water that is given off as steam at higher temperatures. Therefore, heat slowly when first starting fire. 

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