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FireRock Adhesive Fireplace Mortar - 25 Pound Bag
FireRock Adhesive Fireplace Mortar - 25 Pound Bag
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FireRock Adhesive Fireplace Mortar - 25 Pound Bag
$58.49
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$69.99
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$11.50
(16%)
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Product Details
When adding a new fireplace to your outdoor living space, filling your cart with outdoor fireplace accessories is tempting. But have you covered the basics of building your new fire feature? There's no need to fret if not- FireRock makes the process easy with in-house formulas like the FireRock Adhesive Fireplace Mortar. This reliable mortar is just what you need to build your new FireRock masonry fireplace. The specially-formulated polymer creates a long-lasting bond that locks out water when properly applied, and it cures in only a day or two.
Please Note: FireRock masonry fireplaces must be installed with this mortar. FireRock masonry fireplaces installed with different brands and types of mortar will not be protected under warranty.
Customer Q&A with Product Specialists
Jessica B.
from SW Colorado asked:
I'm planning to adhere 12x12 ceramic tiles to the exterior of a freezer unit that will be kept outdoors in Colorado. Would FireRock Adhesive Fireplace Mortar be suitable for bonding these tiles to the metal surface of the freezer, or to metal file cabinets that will be used as outdoor flower bed borders?
After reviewing the details of your project, FireRock Adhesive Fireplace Mortar is specifically formulated for bonding masonry units together, such as firebrick and stone veneer, in the construction of masonry fireplaces. Its intended application is for masonry-to-masonry construction, not for adhering ceramic tile to metal surfaces. Given that bonding tile to metal falls outside the product's designed use, and considering the additional stress from outdoor freeze-thaw cycles in Colorado, we cannot confirm its effectiveness for your project and do not recommend it for adhering tiles to your freezer or file cabinets. For this specific application, we suggest seeking an adhesive product explicitly rated for exterior tile-to-metal bonding.
Answered by:
Nevins P.
on Sep 01, 2026
Michael S.
from Harrod Ohio asked:
Can it be used as a scratch mortar for veneer stone?
Per FireRock, you can use the mortar for attaching stone veneer to the exterior of a fireplace.
Answered by:
Kathy O.
Mike
from Nashville Tennessee asked:
Can fire rock mortar be used on fire brick?
It could be used, yes, as this is its application with the FireRock fireplaces.
Answered by:
Tyler M. - NFI Master Hearth Professional
Logan S.
from asked:
Can this product be used as mortar for new firebox construction?
It can be used for such a purpose, but it is intended for use only with the FireRock models.
Answered by:
Tyler M. - NFI Master Hearth Professional
Showing 4 of
5 Questions and Answers
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