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Item #:
242415011
DAP High Heat Fire Resistant Mortar, 10 Oz, Black (7079818854)
Item #:
242415011
SCR 171
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
8%
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, August 26
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Super tough, high temperature mortar that sets rock hard when fired.
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Product Details
| Brand Name | DAP |
| UPC | 070798188549 |
| Unit Count | 10.1 Ounce |
| Global Trade Identification Number | 00070798188549 |
| Number of Items | 1 |
| Included Components | 1 Tube |
| Item Type Name | Mortar |
| Manufacturer | DAP |
| Model | 7079818854 |
| Part Number | 7079818854 |
| Item Weight | 10.08 ounces (285.77 grams) |
| Item Dimensions | 11.5 x 2 x 2 inches (29.2 x 5.1 x 5.1 cm) |
| Water Resistance Level | Waterproof |
| Item Form | Paste |
| Compatible Material | Wood, Masonry, Firebrick |
| Style Name | Tube |
| Color | Black |
| Surface Recommendation | Interior |
| Material Type | Silicate Cement |
| Material | Silicate Cement |
| Brand | DAP |
| Style | Tube |
| Item dimensions L x W x H | 11.5 x 2 x 2 inches (29.2 x 5.1 x 5.1 cm) |
What's in the box
1 Tube
Product Description
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Customer Questions & Answers
-
Question:
What is DAP 7079818854 High Heat Mortar Fire Stop Caulk used for?
Answer: DAP 7079818854 High Heat Mortar Fire Stop Caulk is specifically designed for high-temperature applications. It is ideal for repairing mortar joints, filling gaps around appliances and HVAC systems, and sealing chimneys or flues. This caulk withstands extreme heat, making it suitable for fireplace installations, ovens, and barbeque grills. For instance, if you're installing a wood-burning stove, this caulk will provide a reliable seal that resists high temperatures and prevents heat loss. -
Question:
Is DAP High Heat Mortar Caulk resistant to water and weather conditions?
Answer: Yes, DAP High Heat Mortar Caulk exhibits resistance to water and various weather conditions. This feature is particularly important for outdoor applications, where moisture exposure can degrade other types of sealants. For example, using this caulk to seal around outdoor fireplaces will protect against rain and humidity, ensuring a long-lasting, effective seal without compromising performance. -
Question:
How long does it take for DAP High Heat Mortar Caulk to cure?
Answer: The curing time for DAP High Heat Mortar Caulk is typically around 24 hours, depending on environmental conditions such as temperature and humidity. It's crucial to allow the caulk to cure fully before exposing it to heat or moisture. Planning your project around this drying time ensures that your seals will be effective when your fireplace or heating appliance is put into use. -
Question:
Can DAP High Heat Mortar Caulk be painted over?
Answer: Yes, DAP High Heat Mortar Caulk can be painted over once it has fully cured. This allows you to achieve a seamless look with your surrounding surfaces. It’s advisable to use high-quality paints that can endure high temperatures to ensure a lasting finish. For example, if you are sealing around a fireplace, painting over the caulk can help it blend with the decor of the room, enhancing overall aesthetic appeal. -
Question:
Is this caulk suitable for indoor and outdoor use?
Answer: DAP 7079818854 High Heat Mortar Caulk is suitable for both indoor and outdoor use, making it versatile for various applications. Inside, it can be used around heating appliances, while outdoors, it can seal outdoor fireplaces and chimneys. This adaptability allows homeowners to maintain consistency in sealant performance across different environments. -
Question:
What surfaces can DAP High Heat Mortar Caulk be applied to?
Answer: DAP High Heat Mortar Caulk adheres well to a variety of surfaces, including masonry, metal, wood, and concrete. This makes it an excellent choice for sealing mortar joints, chimney joints, and around stoves or fireplaces. By ensuring proper surface preparation, such as cleaning and drying, you can achieve optimal adhesion and sealing, ensuring your repairs or installations last. -
Question:
Does DAP High Heat Mortar Caulk emit strong odors during application?
Answer: While DAP High Heat Mortar Caulk may have a mild odor during application, it is generally low in VOCs (volatile organic compounds). It’s advisable to use it in well-ventilated areas to minimize any potential discomfort. Ensuring good air circulation can help create a more pleasant working environment while applying the caulk. -
Question:
What is the drying time for DAP High Heat Mortar Caulk?
Answer: Drying time for DAP High Heat Mortar Caulk can vary, but it usually dries to the touch in about an hour. However, it’s essential to allow it to cure fully for the best results, which can take up to 24 hours. For users working on projects like fireplace repairs, giving the caulk ample time to cure ensures that it will properly seal and endure repeated heating without breaking down. -
Question:
Is DAP High Heat Mortar Caulk safe to use in high-temperature areas?
Answer: Absolutely, DAP High Heat Mortar Caulk is specifically formulated for applications involving high temperatures. It can withstand extreme heat without degrading, making it safe for use in fireplaces, heat ducts, and around stoves. This assurance allows homeowners to seal crucial areas without concern about the caulk failing under intense conditions, ensuring safety and efficiency. -
Question:
Where can I buy DAP 7079818854 High Heat Mortar Fire Stop Caulk, 10 Fluid Ounces, Black?
Answer: You can buy DAP 7079818854 High Heat Mortar Fire Stop Caulk from Ubuy. They offer a convenient way to purchase this product online with fast access to your required supplies. Ubuy provides a user-friendly shopping experience, making it easier for customers to find specific products like this high heat caulk.
DAP Fire Barrier Caulk Editorial Review
Customers have had largely positive experiences with this adhesive, particularly praising its effectiveness for high-temperature applications like repairing fire pits and stoves. The product stands out for its heat resistance, which instills confidence in users who depend on it for repairs in areas exposed to fire and heat. Many reviewers noted that the adhesive works as intended, providing strong bonds that hold up well under fire usage, which is the primary concern for customers seeking a reliable repair solution. The application process is generally described as straightforward, although some users have mentioned that it can be messy. One customer suggested using wet paper towels to manage excess adhesive during application, which indicates a common challenge in keeping the process tidy. Additionally, while the color of the adhesive is darker than expected—described as charcoal gray or black—most users felt that this was a minor issue, especially Considering the effective repair results. It’s worth noting that a few customers expressed a desire for a lighter color option, but this did not detract significantly from their overall satisfaction with the product. In terms of durability, there are mixed reports about the longevity of the bond created by the adhesive; while some users noted successful first-time applications, others experienced minor sinking or the need for reapplication. These accounts highlight the importance of proper application technique and the potential for variation in results based on individual use cases. Overall, this adhesive is highly regarded for its heat resistance and efficacy in repairing fire-related products, though potential buyers should be aware of the color and slight messiness during application. **
Customer Reviews & Ratings
2422 customers ratings
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5 Star
73%
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4 Star
15%
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3 Star
6%
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2 Star
2%
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1 Star
4%
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Pros
- Excellent heat resistance, ideal for fire pit and stove repairs
- Strong bond, providing effective repairs
- Easy to apply with a straightforward process
- Reduces smoke smells and improves draft when used in chimneys
Cons
- Dark color (black/charcoal gray) may not suit all applications
Platform Trust & Buyer Confidence
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Verified buyer
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23 July 2026 · via Trustpilot
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22-Jul-26 · via Trustpilot
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23 July 2026 · via Trustpilot
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SCR 171
Order now and get it around Wednesday, August 26
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Features & Benefits
- Non-combustible silicate cement for wood-frame construction.
- Ideal for patching around fireplaces and wood-burning stoves.
- Withstands extreme temperatures up to 2000 degrees F.
- Easy water clean-up for hassle-free application.
- Sets rock hard when fired, providing a durable seal.
- Saves energy by stopping air leaks.
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