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Item #866490 |
Model #866490
This specially engineered blend of specific cements and aggregates gives the mortar unique heat resistance and thermal characteristics for use in high-temperature applications
Interior or exterior use
Use for constructing or tuck pointing fireplaces, barbecues, and chimneys
Laying fire brick or clay masonry in high heat applications
Working time: 60 min
General | |||
|---|---|---|---|
Color/Finish Family | Gray | Unit of Measure | Pound(s) |
Manufacturer Color/Finish | Light grey | Drive on Time (Hours) | 0 |
Product Type | Mortar mix | Curing Time (Days) | 28 |
Material | Mortar | VOC Level | 0 |
Package Type | Bag | Compression Strength (PSI) | 750 |
Unit of Measure Quantity | 50 | Working Time in Minutes | 60 |
Dimensions | |||
|---|---|---|---|
Coverage Area (Sq. Feet) | 50 | Coverage Area Unit of Measurement | Sq. Feet |
Coverage Area per Package | 50 | ||
Features | |||
|---|---|---|---|
Fast Setting | No | Set Time (Minutes) | 180 |
Premixed | Yes | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | |||
Warranty | |||
|---|---|---|---|
Warranty | 1-year limited | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 30111500 | ||
Check out the Best Selling Concrete, Cement & Stucco Mixes on Lowes.com
Ratings may include incentivized customer reviews.
Customer Sentiment
Takes days to cure
Product mixed well east to apply
Pizza Oven
Used it on pizza oven build and fireplace. Easy to work with. Make small batches to save mortar, a bag goes fast. Also, it is White not gray as pictured.
HAS NEVER BEEN IN STOCK
Many hoops to jump through to get this item.
-rickamortis, please contact us directly at 1-866-SAKRETE (866-725-7383). So, we may gather more information to aid with resolving your concerns. ...

Dima
Best and cheap high temperature mortar not always available in Lowes store the products 5 stars ⭐️⭐️⭐️⭐️⭐️
Works great.
Used for a custom charcoal furnace. Fair warning it dries quicker than normal mortar, but it works great. I used this with Old Castle firebrick and have had no issues thus far.
Specific Need-Convenience Purchase
When you need pre-blended fire clay mortar, you need it now. 4 stars for product performance PLUS 1 star for the convenience of it being on the shelf at my Lowe's store. This is such a convenience and time saver for me to be able to pick up fire clay mortar locally.
High Heat Mortar-So easy to use
Husband and I finishing up outdoor brick BBQ. We wanted to coast the insides with no clue what to use. Walking down concrete aisle and see SAKRETE HIGH HEAT MORTAR bags. Wow, the answer was right there! Bought a couple bags. It mixed up so easy ad's creamy. Applied a couple coats and it worked like a charm. Dried a nice white. Thank you to Lowe's for providing us with an answer!
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-Dave B, we appreciate you taking your time to leave a review, should you have any questions or concerns going forward with this product, don't h...