🔥 Seal the heat, save the energy — be the pro who stops leaks like a boss!
DAP High Heat Mortar Fire Stop Caulk is a black, non-combustible silicate cement designed for interior use around fireplaces and wood stoves. It withstands extreme temperatures up to 2000°F, cures rock hard in 2 hours, and effectively seals air leaks to improve energy efficiency. Certified to ASTM E 136 standards, it offers a durable, easy-to-apply solution for fire safety and energy savings.
| Color | Black |
| Brand | DAP |
| Item Weight | 1.3 Pounds |
| Liquid Volume | 10 Fluid Ounces |
| Full Cure Time | 2 Hours |
| Item Form | Paste |
| Maximum Gap Fill | 0.06 Inches |
| Surface Recommendation | Interior |
| Temperature Range | 40 to 100 Degrees Fahrenheit |
| Water Resistance Level | Waterproof |
| Number of Items | 1 |
| Manufacturer | Dap |
| UPC | 070798188549 |
| Global Trade Identification Number | 00070798188549 |
| Unit Count | 10.1 Ounce |
| Material | Plastic |
| Part Number | 18854 |
| Item Weight | 1.27 pounds |
| Product Dimensions | 11.5 x 2 x 2 inches |
| Country of Origin | China |
| Item model number | 7079818854 |
| Is Discontinued By Manufacturer | No |
| Size | 10 Fluid Ounces |
| Style | Tube |
| Shape | Shape |
| Thickness | 1 Inches |
| Item Package Quantity | 1 |
| Included Components | Unit^Instruction Guide |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
Z**O
Seals and Dries Hard
I like this stuff cause it works and is easy to apply.
M**T
Works well
Works well
J**R
Pretty good
I just wanted to seal up around the fireplace insert. You could feel the cool air coming in. I bought two lucky, I needed them both. It said that you needed to start fire to dry it but, looking it up on line it said to just wait 24 hours for it to dry.
S**S
Great value
Works perfect. Would recommend.
M**.
works great.
works great.
R**Y
It dries out and flakes off
I used it to seal around a fire pit. After several uses, it started to Crack and flake off in chunks.
T**0
DAP high heat caulk
We used this high heat caulk on our chimney for my wood cooking stove. We used it to seal up the chimney collar to keep the rain and snow from coming inside the pipe.
J**Y
Works great!
The media could not be loaded. I got scared away by other brands due to their reveiws so I picked the cheapest option and i am beyond happy. There's no more smoke pouring out of my chimney and there's no smell! It did bubble up but I got the fire a little too hot and im not concerned about what this looks like
Trustpilot
2 days ago
1 day ago
