Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar

This stuff is awesome. I had some cracks and some of the stone chopped on my fire place. This fixed it right up. Easy peasy.

Worked great for me.

This works fantastic for my purpose. In my basement is a woodstove with one of those god-awful chimneys that has all the segmented sections that let’s air in to create creosote or in the summer if it reverses it let’s smoke smell out. After I took it apart and cleaned it thoroughly I put this stuff on each section as I was putting it back together. Keep a bunch of wet paper towels are wet rags handy as you wipe excess off with your fingers as you go. I’d say in 15 to 20 minutes it was semi hard. Then I just started a fire to fire the material. I have no smoke smell anymore. The draft is stronger to because there’s not air leakage. Over the next few days of having fires the excess that I didn’t quite wipe off or crack and fall to the ground but the stuff in the joints is staying strong. It’s not the prettiest up close but when you’re not standing right next to it you really don’t notice it. it dries to a very dark charcoal gray almost black. If I’ve gone slower I could’ve made it much less messy. It shows up more in the picture than it does in real life. You could definitely paint it with grill paint if you want to do afterwards. A+, five stars, two thumbs up, would play with grey fire smoo again!

Worked well for what I wanted. I needed to seal between the bottom metal edge of my fireplace grate and the irregular surface of the stone hearth. I was expecting that it would be firmer out of the tube and hold its shape better. I needed to tape off what I needed and let the product dry, which it did quickly. It has hardened now and fills my gaps very well.

Works great