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I have a fireplace that is located on an inside wall. The fireplace is 40 years old. I had it inspected and was told the fireplace is in good condition, but the mortar between the large grey bricks needs to be replaced on the back inside the fireplace
Posted by Elite Deals - Chris M. on 24 October 2013 03:57 PM

Our Answer:

While this product is ideally used for relining existing stoves or covering existing brick, it can be used as a mortar for firebrick as well. Another product that is specifically designed for firebrick mortar is Rutland Dry Refractory Mortar Mix. This product is designed to refill damaged mortar joints and can be used over existing mortar, although I do recommend using a narrow chisel to remove any loose mortar, prior to using the new product.

In Response to Question:

I have a fireplace that is located on an inside wall. The fireplace is 40 years old. I had it inspected and was told the fireplace is in good condition, but the mortar between the large grey bricks needs to be replaced on the back inside the fireplace where wood is set. I did so a year ago with Type s mortar by a masonry person. The mortar came out after building a fire. I was told a refractory mortar would do well with my issue. This is only a 3 by 3 foot area and between the bricks that are an eighth inch or slightly larger. What would you suggest and can I do this myself with a product you provide? Do I clean the area between the bricks first?

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