Rutland Fireplace Mortar - 10.3 Ounce Cartridge

No, we do not recommend using a creosote sweeping log for curing. You can watch a view by clicking here and going to the learn section. 

This can be used the fill a small crack.  Moisten the area with a damp cloth prior to application and build a small fire the cure the product after a 24-hour drying period.

Yes, this product can be set up by air drying. It won't be exposed to very much heat, so I would recommend letting it set for at least a few days for your purposes.

Yes.  Here are the curing instructions: "After allowing the product to dry for at least 24 hours, you will need to build three consecutive fires of increasing intensity. It is best to build one fire per day, but the process can be rushed a bit, as long as the fireplace is given time to cool down completely in between fires. The first fire can be built just with kindling and only needs to achieve a couple hundred degrees at the surrounding firebox walls. The next two fires can be larger and should heat the walls to 300 to 400 degrees and 500 or over, respectively. By building fires in increasing intensity, this will help to keep the mortar from cracking or separating prematurely."

Not that we are aware of. 

Generally speaking, the cement board is applied over the black metal facing and affixed to the outer framing studs before using thinset, etc., before applying any stone or tile to the cement board. For applying tile directly to the metal facing, an adhesive that is designed for high temperature applications is necessary to allow for the expansion and contraction of the metal firebox. Subsequently, a product like Rutland Pre-Mixed Black Furnace Cement would be ideal for this application. That being said, there will be specific finishing instructions provided in the installation manual for every manufactured fireplace that should be followed closely.

Per our specialist, Collin, "After allowing the product to dry for at least 24 hours, you will need to build three consecutive fires of increasing intensity. It is best to build one fire per day, but the process can be rushed a bit, as long as the fireplace is given time to cool down completely in between fires. The first fire can be built just with kindling and only needs to achieve a couple hundred degrees at the surrounding firebox walls. The next two fires can be larger and should heat the walls to 300 to 400 degrees and 500 or over, respectively. By building fires in increasing intensity, this will help to keep the mortar from cracking or separating prematurely."

That would depend on the size of the repair. This product is also available in a larger size.

Per the manufacturer, this product is not recommended for an outdoor application, as humidity has a negative effect on its durability.

Because this product has a shelf life of approximately 18 months, storing it until fall should not be an issue.

After allowing the product to dry for at least 24 hours, you will need to build three consecutive fires of increasing intensity. It is best to build one fire per day, but the process can be rushed a bit, as long as the fireplace is given time to cool down completely in between fires. The first fire can be built just with kindling and only needs to achieve a couple hundred degrees at the surrounding firebox walls. The next two fires can be larger and should heat the walls to 300 to 400 degrees and 500 or over, respectively. By building fires in increasing intensity, this will help to keep the mortar from cracking or separating prematurely.