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

1. Rutland 610 Refractory Cement, 64 Fl Oz

1
9.7/10 our score

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

2. Rutland Products

2
9.5/10 our score

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

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

3
9.1/10 our score

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

4. Chimney Rx Elastomeric 1/2 Gallon

4
8.8/10 our score

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

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

5
8.6/10 our score

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

6. CHIMNEYRX Brushable Chimney Crown Repair, 1 Gallon

6
8.3/10 our score

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

7. Rutland Products Black, 32 fl oz Furnace Cement

7
8.1/10 our score

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

8. CHIMNEYRX Masonry Chimney Water Repellent, 1 Gallon

8
7.8/10 our score

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

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

9
7.5/10 our score

  • Crack & joint sealant seals crack up to 1/8" wide on brick faces and at mortar and brick joint interfaces to provide waterproof protection
  • The product seals larger cracks and other defects that cannot be corrected with water repellents alone
  • 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
  • Brushable elastomeric sealant for mortar joints used to repair exterior cracks in mortar on chimneys, brick walls and between concrete or stone masonry units
  • It dries to a clear, translucent, milky film

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

10
7.2/10 our score

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

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