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DAP18854 12 Pack 10-Ounce Stove and Fireplace Mortar

DAP18854 12 Pack 10-Ounce Stove and Fireplace Mortar

Q: I'm looking to attach some tin tiles to sheetrock. Think this will work?

I think that you would have better results using the following item: "Dap 27450 Beats The Nail All-Purpose Construction Adhesive 10.3-Ounce". Make sure that you remove any oily film that may be on the tin before applying the construction adhesive.

Q: Is the item waterproof? Can it be used outside for repairs in all weather conditions?

Yes it is waterproof. I used it around my flue pipe on the roof. Stuff works great. I would do 2 layers instead of one.

Q: Has anyone had success with this product without fire curing? Manufacturer says it must be fire cured but I need a fire seal of 2000F+ but can't fire

I used this to seal the storm collar and flashing around my class A chimney penetrating through my roof. That installation definitely was not fire-cured, and has held up extremely well. It does cure very hard, but has performed well for my application. I check, the seals when I clean my chimney every year, and 11-years in all is still well.

4.5/5

Product ID: 339085961

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Details

Colour
Black
Brand
DAP
Item weight
576 g
Liquid volume
10 Fluid
Full cure time
2 Hours

⏳1-hour application time

🔥Withstands up to 2000°F

🛠️ASTM E136 non-combustible certified

Frequently Bought Together

DAP 7079818854 High Heat Mortar Fire Stop Caulk, 10 Fluid Ounces, Black

Minuteman International Cast Iron Clean-Out Door, 8 by 8-Inch,Black

Minuteman International Cast Iron Ash Dump, Black

Description

🔥 Seal the heat, own the hearth!

VERSATILE USE - Ideal for wood frame construction and fireplace maintenance—your all-in-one heatproof sealant.
CERTIFIED SAFETY - Meets ASTM E136 standards for non-combustibility—trust the seal that professionals rely on.
PRECISION REPAIR - Perfect for patching and tuckpointing chipped or broken firebricks with lasting adhesion.
EFFORTLESS APPLICATION - Smoothly applies with any standard caulk gun and sets rock hard when fired.
FIREPROOF FORTIFICATION - Endures extreme heat up to 2000°F, keeping your fireplace flawless and safe.

Dap 18854 Stove and Fireplace Mortar is a high-performance silicate cement designed for repairing and sealing firebricks. Certified non-combustible per ASTM E136, it withstands temperatures up to 2000°F, sets rock hard when fired, and applies easily with a standard caulk gun. Perfect for professional-grade fireplace maintenance and wood frame construction sealing.

Specifications

Product Dimensions	29.21 x 5.08 x 5.08 cm; 576.06 g
Part number	18854
Item display length	10 centimeters
Item display weight	400 Grams
Material type	Silicate Cement
Capacity	10 Fluid Ounces
Item volume	10.1 Fluid Ounces
Department	Unisex-Adult
Manufacturer	Dap Incorporated
Item model number	7079818854
ASIN	B0006MXS4C

Have a Question? See What Others Asked

I'm looking to attach some tin tiles to sheetrock. Think this will work?

Can this be used to install wood stove door gaskets?

Is the item waterproof? Can it be used outside for repairs in all weather conditions?

Has anyone had success with this product without fire curing? Manufacturer says it must be fire cured but I need a fire seal of 2000F+ but can't fire

Common Questions

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