11 lb Masonry Refractory Mortar Rated 2600°F – Fireplace Brick, Pizza Oven
$68.49
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- 🔥【Universal Refractory Mortar】 Powerful Bond, Defies Extreme Heat: Specifically engineered for temperatures up to 1420°C (2600°F),Masonry mortar for joining and repairing flue tiles in any fireplace (gas/wood) or stove (wood/coal/pellet).
- 👌【DIY & Pro Friendly】 Just Add Water & Go: Refractory Mortar cement, just add water and trowel into place. No complex measuring required.Comes with detailed instructions and tips, making masonry joining and repairs simple and efficient.
- 🛠️【3-in-1 Versatility】 Mortar, Repair & Coating: The ultimate choice not only for joining and repairing flue tiles, but also as a high-performance coating for building or restoring the interior of stove fireboxes, enhancing fire resistance, sealing, and surface smoothness.
- ✨【Durable & Professional Finish】 Sleek Dark Gray: An optimized formula ensures superior durability, crack resistance, and air-tightness.Cures to a uniform, professional dark gray finish that blends naturally with firebrick, offering long-lasting performance without fading or crazing.
- 🧱【Fast-Setting Refractory Mortar】 Masonry & Fire Brick Repair and The Flue Seal & Repair Expert.Three package sizes available: 11 lb, 22 lb, 44 lb. Reference value of usable area（Net volume = 44 lb/ 94 lb/ft³ ≈ 0.468 ft³; Net volume= 22 lb / 94 lb/ft³ ≈ 0.234 ft³; Net volume= 11 lb / 94 lb/ft³ ≈ 0.117 ft³）.
- Free 30-Day Returns
- Full Refund for Damaged or Incorrect Items
- Guaranteed Delivery or Money Back
- Secure Checkout & Fast Support
- 🔥【Universal Refractory Mortar】 Powerful Bond, Defies Extreme Heat: Specifically engineered for temperatures up to 1420°C (2600°F),Masonry mortar for joining and repairing flue tiles in any fireplace (gas/wood) or stove (wood/coal/pellet).
- 👌【DIY & Pro Friendly】 Just Add Water & Go: Refractory Mortar cement, just add water and trowel into place. No complex measuring required.Comes with detailed instructions and tips, making masonry joining and repairs simple and efficient.
- 🛠️【3-in-1 Versatility】 Mortar, Repair & Coating: The ultimate choice not only for joining and repairing flue tiles, but also as a high-performance coating for building or restoring the interior of stove fireboxes, enhancing fire resistance, sealing, and surface smoothness.
- ✨【Durable & Professional Finish】 Sleek Dark Gray: An optimized formula ensures superior durability, crack resistance, and air-tightness.Cures to a uniform, professional dark gray finish that blends naturally with firebrick, offering long-lasting performance without fading or crazing.
- 🧱【Fast-Setting Refractory Mortar】 Masonry & Fire Brick Repair and The Flue Seal & Repair Expert.Three package sizes available: 11 lb, 22 lb, 44 lb. Reference value of usable area（Net volume = 44 lb/ 94 lb/ft³ ≈ 0.468 ft³; Net volume= 22 lb / 94 lb/ft³ ≈ 0.234 ft³; Net volume= 11 lb / 94 lb/ft³ ≈ 0.117 ft³）.
Fast-Setting Refractory Mortar –Masonry & Fire Brick Repair and The Flue Seal & Repair Expert.
Engineered for sealing and repairing chimneys in all combustion systems,building a strong, durable fire barrier!
Three package sizes available: 11 lb, 22 lb, 44 lb.
Answering Customer Evaluation Questions：
Q: It didn't harden and bond like fireclay?
A: After the bricklaying is completed, it needs to be fired to harden and bond (Note: It must be fired once).
Q: Applied a layer about 1 inch thick and smoothed it, but the entire floor ended up cracking?
A: Apply a uniform layer (approx. 3-5mm/0.11inch thick) to the brick surface. Align and tap brick to expel excess, ensuring full joints.
⚠️WARNING: If the refractory mortar is applied too thick (exceeding 5mm/0.19inch) when laying firebricks, it is prone to cracking. This is because the thick mortar layer lacks internal support points. This must be avoided.
Product ingredients:
Aluminium Oxide - Al₂O₃ ≤65%
Silicon Dioxide - SiO₂ ≤ 32%
Ferric Oxide - Fe₂O₃ ≤2.2%
K₂O/CaO/Na₂O/TiO₂ ≤0.8%
🛠️ 3-In-1 Professional Performance:
→ Seal & Repair: Permanently fixes cracked flue tiles/liners.
→ Masonry Bonding: Masonry & Fire Brick Repair.
→ Firebox Parging: Apply as thin overlay coat to seal firebrick surfaces & improve combustion efficiency.
🧱Fast-Setting Refractory Mortar:
🔥 Core Applications (Fireplace & Stove Focused):
→Sealing & Joining Flue Tiles: Masonry & Fire Brick Repair Perfect for connecting, sealing, and repairing flue tiles in gas and wood fireplaces, as well as wood, coal, and pellet stove chimneys.
→Creating Smooth Firebox Walls: Can be used as a thin coating applied to newly constructed firebox interiors, providing an even, aesthetically pleasing dark gray surface while enhancing structural density.
🧱 Performance Highlights:
1. Easy Operation, Ready-to-Use: Simply add water and mix to achieve ideal working consistency – applies easily with a trowel!
2. Just Add Water - No Mixing Guesswork:: Pre-blended dry formula activates with water only (no special additives needed). Achieve perfect trowel-ready consistency in minutes.Includes foolproof mixing guide.
3. No Complex Curing Needed (Flexible Curing): Air-cures rock-hard in 24 hours. Achieves high strength naturally upon curing (no mandatory kiln firing required), saving you installation time. (Pro Tip: If subsequently exposed to the heat of fireplace/stove operation (bake-in firing), its final strength becomes even greater!).
4. Long-Lasting & Reliable: Specifically designed for the high-temperature, corrosive flue gas environment inside chimneys, offering reliable long-term sealing and protection.
🎨 Premium Finish:
Rich Charcoal Finish: Cures to a uniform, durable, and attractive dark gray hue.
Refractory Mortar Usage Instructions：
I. Preparation
Material Check: Confirm mortar grade matches the operating temperature. Check for lumps; crush and sieve if needed. Do not use if severely deteriorated.
Surface Prep: Clean substrate thoroughly (remove dust, oil, loose debris). Ensure it is dry and even. If overly dry, lightly dampen (no water pooling).
II. Mixing
Important: A small bag of setting retarder is inside the main bag. You must mix this powder thoroughly with the dry mortar before adding water.
Water Ratio: Add water per instructions (typically a 1:4 to 1:5 water-to-mortar mass ratio). Avoid excess water (weakens strength) or too little (poor mix).
Method: Add water slowly to the dry mix while stirring continuously to a uniform, lump-free paste. Let it slake for 5-10 minutes, then stir again before use.
III. Application
Laying/Patching:
Laying Bricks: Apply a uniform layer (⚠️ WARNING: approx.3-5mm/0.11inch thick) to the brick surface. Align and tap brick to expel excess, ensuring full joints.
⚠️WARNING: If the refractory mortar is applied too thick (exceeding 5mm/0.19inch) when laying firebricks, it is prone to cracking. This is because the thick mortar layer lacks internal support points. This must be avoided.
Repairs: Clean defects thoroughly, then fill and compact the mortar into cracks/holes.Smooth the surface.
Precautions: Work continuously to prevent drying.If mortar stiffens,remix with a little water.Do not use material that has set or completely dried.
IV. Curing & Drying
Curing: Protect application from drafts and high temperatures. Allow to cure naturally at room temperature for 24-48 hours.
Drying (Crucial): After curing, dry gradually.Raise temperature slowly (max. 50°C (120°F)/hour) to prevent cracking until moisture is fully removed (drying temp usually ≤ 200°C (392°F) ). The lining can only undergo high-temperature operation after complete drying.
V. Safety & Storage
Safety: Wear gloves and a dust mask. Avoid skin contact and dust inhalation.Rinse skin with water if contact occurs.
Storage: Keep in a dry, ventilated area. Keep containers sealed. Shelf life is typically 12-24 months.
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
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Shipping Methods & Estimated Delivery
| Shipping Method | Estimated Delivery | Cost |
|---|---|---|
| Free Shipping (US) | 5–10 business days | Free, available on eligible items |
| Standard Shipping (US to US by Item) | 5–10 business days | $5.95 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
| Extended Delivery (Ships from Overseas Warehouse) | 10–20 business days | $14.99 for the first item, $2.00 each additional |
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Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
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Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
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- The item must be unused, in the same condition as received, and in its original packaging.
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Shipping Cost for Returns
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If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.
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Refund Processing
Once your return is received and inspected:
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- 5–7 business days for the return to reach our Returns Center.
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Exchanges
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The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
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Email: support@ibspot.com
Contact Form: Contact Us page
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