Best Mortar For Chimney In January 2025

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There is always a perfect Best Mortar For Chimney out there in the market for you. However, you may not have the time and resources to try and research each of them in detail. So we’ve done the heavy lifting and are sharing below our detailed review of Top 10 Best Mortar For Chimney.

To help you in your search, we have completed this list of the Best Mortar For Chimney.

Top Rated Best Mortar For Chimney Of 2025

Rank	Product Name	Score
1	Rutland 610 Refractory Cement, 64 Fl Oz Buy Now	9.7 Buy Now
2	Rutland Products Buy Now	9.5 Buy Now
3	Red Devil 0466 Fireplace & Stove Repair Sealant, Black, 10.1 fl. oz., 1 Buy Now	9.1 Buy Now
4	Chimney Rx Elastomeric 1/2 Gallon Buy Now	8.8 Buy Now
5	MEECO'S RED DEVIL 610 Refractory Cement - Indoor Use Only Buy Now	8.6 Buy Now
6	CHIMNEYRX Brushable Chimney Crown Repair, 1 Gallon Buy Now	8.3 Buy Now
7	Rutland Products Black, 32 fl oz Furnace Cement Buy Now	8.1 Buy Now
8	CHIMNEYRX Masonry Chimney Water Repellent, 1 Gallon Buy Now	7.8 Buy Now
9	ChimneyRx Masonry Fireplace Crack & Joint Sealant - 1 Pint Buy Now	7.5 Buy Now
10	MEECO'S RED DEVIL 121 Furnace Cement and Fireplace Mortar Buy Now	7.2 Buy Now

1. Rutland 610 Refractory Cement, 64 Fl Oz

• Color: buff
• Thick, smooth consistency makes this cement amazing for mortar between firebricks
• Requires minimum 500 degree f heat cure
• Ready-to-use pre-mixed cement sticks easily to masonry in your firebox to fill in small gaps
• Rated up to 2000 degrees f (1090 degrees c)
• For interior use only

2. Rutland Products

• Buff (tan) colored fireplace mortar
• Rated to 2000f (1090c)
• Sets as hard and as strong as firebrick after curing
• Perfect for repairing small chips or cracked firebrick, re-pointing mortar joints between firebricks, and bonding firebricks together
• Approximate coverage: 99 feet with 1/8" bead.

3. Red Devil 0466 Fireplace & Stove Repair Sealant, Black, 10.1 fl. oz., 1

• Withstands temperatures up to 1000f
• Ideal for patching fire bricks and sealing wood-burning stoves
• Water clean up
• Sets rock hard when fired
• Interior use only
• Non-flammable

4. Chimney Rx Elastomeric 1/2 Gallon

• Easy brush-on application (brush not included)
• Stops leaks around chimney flashings, skylights, stacks, & vents
• Ready to use, no mixing required, cleanup with soap & water
• Remains permanently flexible to stop chimney leaks
• 1/2 gallon covers 14 sq. ft.

5. MEECO'S RED DEVIL 610 Refractory Cement - Indoor Use Only

• Use where thicker joints are required
• Not for outdoor use. made in the usa
• Withstands working temperatures up to 3000-degree f
• 1/2 gallon size, buff in color
• Pre-mixed, fiber-reinforced, high temperature silicate mortar

6. CHIMNEYRX Brushable Chimney Crown Repair, 1 Gallon

• Specifically formulated to repair and protect fireplace & chimney crowns from water intrusion
• Stops chimney water leaks & repairs chimney crown cracks
• Fast-setting, flexible coating that seals and protects chimney crown tops - repairs cracked chimney crowns and prevents chimney leaks
• Easy to apply with a 3 inch or 4 inch paint brush, & cures in 2-4 hours
• Covers approximately 40 square feet per gallon

7. Rutland Products Black, 32 fl oz Furnace Cement

• Smooth consistency cement bonds and seals metal to metal or metal to masonry joints
• Repair stove cracks and seals, reset firebrick, attach your stove collar, glue ceramic logs
• Great cement for small repairs or big rebuilds, easy to use and clean up
• Rated to withstand up to 2000 f (1090 c)

8. CHIMNEYRX Masonry Chimney Water Repellent, 1 Gallon

• Water-based & environmentally friendly
• Easy to use - simply spray on with a pump sprayer
• Keeps masonry looking new / prevents deterioration caused by water
• Dries completely clear - doesn't alter surface appearance
• Long lasting water repellent prevents water penetration in masonry chimneys

9. ChimneyRx Masonry Fireplace Crack & Joint Sealant - 1 Pint

• Brushable elastomeric sealant for mortar joints used to repair exterior cracks in mortar on chimneys, brick walls and between concrete or stone masonry units
• The product seals larger cracks and other defects that cannot be corrected with water repellents alone
• It dries to a clear, translucent, milky film
• When applied to a properly prepared wall or chimney surface, crack & joint sealant can solve tough leak problems without the expense of truck pointing or surface grouting
• Crack & joint sealant seals crack up to 1/8" wide on brick faces and at mortar and brick joint interfaces to provide waterproof protection

10. MEECO'S RED DEVIL 121 Furnace Cement and Fireplace Mortar

• Pre-mixed, ready-to-use, high-temperature cement/mortar
• Gray in color
• Withstands working temperatures up to 2,000-degrees f
• Made in the usa
• Designed for patching or repairing cracked or chipped firebrick and mortar