DAP 7079818854 High Heat Mortar Fire Stop Caulk, 10 Fluid Ounces, Black
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DAP 7079818854 High Heat Mortar Fire Stop Caulk, 10 Fluid Ounces, Black

4.5/5
Product ID: 671814
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Details

  • Color
    Black
  • Brand
    DAP
  • Item Weight
    1.3 Pounds
  • Liquid Volume
    10 Fluid
  • Item Form
    Paste
💨Seals air leaks to save energy
🔥Withstands extreme heat up to 100°F
🛠️Rock-hard set for durable fire stops

Description

🔥 Seal the heat, stop the leaks, save the energy!

  • ENERGY SAVING SEAL - Stops air leaks effectively, helping reduce energy bills and improve home comfort.
  • PRECISION GAP FILLING - Perfectly fills gaps up to 0.06 inches, delivering a flawless, rock-hard finish.
  • WATERPROOF DURABILITY - Built to resist moisture, ensuring long-lasting performance in interior spaces.
  • EFFORTLESS APPLICATION - Smooth paste formula glides on easily for quick, professional results every time.
  • HEAT RESISTANT POWERHOUSE - Super tough mortar that endures high temperatures without cracking or melting.

DAP 7079818854 High Heat Mortar Fire Stop Caulk is a black, waterproof paste designed for interior use. It withstands temperatures up to 100°F, sets rock hard for durable fire stops, and seals air leaks to improve energy efficiency. With easy application and precise gap filling up to 0.06 inches, it’s the go-to solution for professional-grade fire and air sealing.

Small manufacture image 1Small manufacture image 2Small manufacture image 3

Specifications

ColorBlack
BrandDAP
Item Weight1.3 Pounds
Liquid Volume10 Fluid Ounces
Item FormPaste
Maximum Gap Fill0.06 Inches
Surface RecommendationInterior
Temperature Range40 to 100 Degrees Fahrenheit
Water Resistance LevelWaterproof
Number of Items1
ManufacturerDap
UPC070798188549
Global Trade Identification Number00070798188549
Unit Count10.1 Ounce
MaterialPlastic
Part Number18854
Item Weight1.27 pounds
Product Dimensions11.5 x 2 x 2 inches
Country of OriginChina
Item model number7079818854
Is Discontinued By ManufacturerNo
Size10 Fluid Ounces
StyleTube
ShapeShape
Thickness1 Inches
Item Package Quantity1
Included ComponentsUnit^Instruction Guide
Batteries Included?No
Batteries Required?No
Warranty DescriptionWarranty

Have a Question? See What Others Asked

I'm looking to attach some tin tiles to sheetrock. Think this will work?
Can this be used to install wood stove door gaskets?
Is the item waterproof? Can it be used outside for repairs in all weather conditions?
Has anyone had success with this product without fire curing? Manufacturer says it must be fire cured but I need a fire seal of 2000F+ but can't fire

Reviews

4.5

All from verified purchases

M**.

works great.

works great.

R**N

Nice product

Works great

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.

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

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.

D**N

Protect your fireplace!

I have used this product for the past 30 years. My home is 50 years old. Overtime mortar becomes cracked and worn away. This is a necessity for protecting your fireplace from gaps inside. It works well.

T**S

Works awesome to seal segmented indoor chimney

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!

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Dap 7079818854 High Heat Mortar Fire Stop Caulk 10 Fluid | Desertcart Tanzania