Rutland Fireplace Mortar Cartridge, 10.3 Fl Oz, Buff - 63B

I used it to fix hairline cracks, larger cracks and to coat part of the bottom of a crumbling prefab firebox. See photos. Simple 1 hour maintenance task that you will be glad you did for safety. Not a super neat job but very functional. I did this years ago - worked great - Rutland is great - but it was time for another application (the previous mortar is gray if you can see it) This time I used buff. Should have tried white. Oh well.0- Follow all the instructions on the tube.1- Tools: Vacuum, Caulk gun, 1” putty knife, 6” putty knife. If all you are fixing are cracks, you do not need the 6”. I also recommend a bright light and reading glasses.2- Scrape to loosen all crumbling material then vacuum. Wet the areas to be fixed as it says on the tube.3- Cut the tip small and pierce the inner seal - most caulk guns have a cutter plus a swiveling stick to pierce the inner seal. Then do the narrow cracks first. After caulking the cracks, smooth them with the 1” to press it in better and smooth your work.4- Cut more off of the tip to make a bigger hole. Squeeze out an ample amount onto any deteriorating areas, press into voids and smooth with the 6”. Use the 1” to get excess off and scrape off what sticks to the 6” so you can use/reapply it.5- Easy cleanup by scraping tools against each other to remove excess, get more off with a paper towel and then rubbing with water.

This worked really well to fix my 30 year old cracked Big Green Egg firebox This applies easily and cures and fires to a hard fexture.

I had 30 year old fireplace panels with a few cracks hear and there. Pulled them out , cleaned them and applied mortar as per the directions. Worked great and after 3 months burning weekly fires has held up perfectly. Couldn't ask for anything better. Just follow the directions. ...

For the fireplace, easy to apply

Worked great on my brick chimneys mortar. Saved a lot of work. Dried a very light tan [buff] color, looks nice.

Easy to apply. Works very welk.

Worked very well for pointing cracks in the prefab fireplace brick. Follow instructions - must be baked in. Word of advice, if you are filling more than 1/4" - do it in batches otherwise it may "bubble"

After 20 years of fires there were some issues while we were waiting for a new insert we applied this and man does this stuff work! We can actually use the fireplace for another season before we need to replace the insert!

Did the job. Repairing hairline cracks in chimney.

We got it fix up my green egg bbq. Thanks

Doesn’t stick very well to firebricks and takes too long to dry. The joints are fairly weak that can be broken with little effort. Only use I see for this product is fill up small cracks.