Fireplace Mortar | Castable Refractory Cement - 12-1/2lbs

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Our Castable refractory cement is ideal for Fire Brick or repairing larger areas of damaged masonry. The 12.5 pound bucket of refractory fire brick cement is just the right size to mold up to a 12 x 12 x 1.5 inch square. Our high temperature cement mix holds its shapes during the setting process so you can work vertically on overhead brickwork, horizontally at the base, or even cast into any shape. Try using this indoor-outdoor rate material to create solid floors for fire pits or ovens! This dry-mix formula reaches a full cure in 24 hours - no heat required - and will then withstand temperatures up to 2200°F. The non-water soluble refractory cement is tan-gray in color to blend in with fireplace masonry, and can be painted over if desired.

Not for direct food contact
Indoor and outdoor use

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  • Preparation:

    • ​​Make sure working area is clean and free of all dirt, rust, and debris.

    • Wear rubber gloves and safety goggles.

    • Protect the surrounding area with a drop cloth or tarp to prevent stains on carpet or flooring.

  • To use:

    • Mix dry contents with clean, cool water according to product directions in a plastic bucket.

    • Only prepare an amount that can be used within 20-30 minutes, as this mixture will set up quickly.

    • Follow directions on the product per the casting that you are attempting.

Size: 25 Pound Bucket
Color: Tan-Gray
Water-to-Cement Ratio: 25 lbs.
Temperature Rating: 2200°F (1204°C)

Estimated Lead Time:

Please allow 1 week for shipping unless otherwise specified. 

Click on the Add New button below to submit a question about this product. Please ONLY submit product questions. For all other inquiries, please contact us at 1-888-986-1535.

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Last updated on June 8th 2022.
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