44 LBS Refractory Mortar, 2600°F High Temperature Mortar for Masonry -Fire Refractory Cement Patch for Fireplace Brick, Fire Pit, Kiln, Forge & Pizza Oven Repair- No Heat Cure, Air Set Formula
Brand: CongGongGo
Description
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.
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Product Details
- SKU:
- awhd-us-b0fh1x1yl3
- Model:
- 44 LB
- Country:
- US
- ASIN:
- B0FH1X1YL3
- UPC:
- 749614978533
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