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Internet # 205030320

Model # 7079818854

Store SKU # 1000058251

10.1 oz. Black High Heat Mortar Sealant (12-Pack)

Includes 12 tubes ($5.36 /tube)
$64.31
/case
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  • Non-combustible sealant for fireplaces and wood-burning stoves
  • Strong adhesion to firebrick when both wet or dry
  • ASTE E136 tested and can withstand up to 2000 degrees Fahrenheit
  • View More Details
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Product Details

About This Product

DAP High Heat Fire Resistant Mortar is non-combustible silicate cement used for patching chipped firebrick in fireplaces and sealing wood-burning stoves. It adheres firmly to the firebrick when wet or dry and sets rock hard when fired. It can also be used for applications in wood frame construction where an ASTM E136 non-combustible sealant is required, such as sealing around vents, pipes, ducts and chimneys at ceiling and floor level prior to the application of drywall products. It has been tested in accordance with ASTM E136 and withstands temperatures up to 2,000° F. DAP High Heat Mortar is not a fire-rated sealant as defined by Underwriters Laboratories and is not appropriate for fire-rated applications.

Highlights

Product Information

Internet # 205030320

Model # 7079818854

Store SKU # 1000058251

Additional Resources

Shop All DAP

Specifications

Individual size (oz.): 10.1 oz

Dimensions

Individual size (oz.)

10.1 oz

Details

Caulk and Sealant Application

Specialty

Caulk and Sealant Type

Silicone

Caulk Form

Standard Tube

Color/Finish

Black

Coverage (linear ft.)

122

Cure Time (hours)

24

Dry Color Family

Black

Dry to Touch (min.)

60 min

Features

Fire and High Heat Resistant, Moisture Resistant, Mold and Mildew Resistant

Indoor/Outdoor

Indoor

Interior/Exterior

Interior

Kit

No

Longevity

1 year

Number of Tubes Included

12

Paint Tool Product Type

Caulk

Returnable

90-Day

Warranty / Certifications

Certifications and Listings

ASTM Compliant

Manufacturer Warranty

Warranty Information: If you are not satisfied with this product’s performance when used as directed, return used container and sales receipt to DAP Inc., Technical Customer Service, 2400 Boston Street, Suite 200, Baltimore, MD 21224 for product replacement or sales price refund. DAP will not be liable for incidental or consequential damages.

Questions & Answers

28Questions
caret
Q:How many linear feet will one tube cover based on a standard cut of the tip.
by|Jun 26, 2024
1 Answer
Answer This Question

A:  Thank you for posting your inquiry. The DAP High Heat Fire Resistant Mortar will cover approximately 99 linear feet at 1/8” diameter bead. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.

by|Jun 26, 2024
    caret
    Q:Can I apply heat to make Dap cement crack dealer set up?
    by|Nov 19, 2023
    1 Answer
    Answer This Question

    A:  Thank you for posting your inquiry on DAP High Heat Fire Resistant Mortar. As indicated on the product package label and supporting product literature:For Fire Brick Repair in Fireplaces & Wood-Burning Stoves Only: After applying, smooth mortar with a putty knife dipped in water. Protect the new mortar from direct water contact until fire-cured. Air dry for 24 hours, but no longer than 30 days. Allow 24 hours to cure between layers. When tack free, heat for final cure. To heat cure, start a small, low burning fire, keeping the heat below 220°F, until product dries (approximately 1 hour). Increase heat gradually to 500°F to harden the mortar (for another 1 to 2 hours). Should you have any additional questions or require further assistance, please feel free to contact DAP Technical Customer Service at 888-327-8477.

    by|Nov 20, 2023
      caret
      Q:Is this product able to be used to set 12"x24" porcelain tile on an industrial stainless steel pizza oven?
      by|Jul 8, 2023
      1 Answer
      Answer This Question

      A:  Thank you for posting your inquiry. DAP HIGH HEAT FIRE RESISTANT MORTAR is a non-combustible silicate cement for applications in wood frame construction where an ASTM E136 non-combustible sealant is required, such as filling around vents, pipes, ducts and chimneys at ceiling and/or floor level prior to the application of drywall products and would not be appropriate for the application as described. Should you have additional questions or require further assistance, please feel free to contact DAP Technical Customer Service at 888-327-8477.

      by|Jul 11, 2023
        caret
        Q:Can this be use to seal the glassdoor & screen surround
        by|Nov 7, 2022
        1 Answer
        Answer This Question

        A:  Thank you for posting your inquiry. DAP HIGH HEAT FIRE RESISTANT MORTAR is a non-combustible silicate cement for applications in wood frame construction where an ASTM E136 non-combustible sealant is required, such as filling around vents, pipes, ducts and chimneys at ceiling and/or floor level prior to the application of drywall products. While this product can also be used for minor wood burning stove and fireplace applications/repairs, when fully dried/cured, it is not flexible. The expansion/contraction that may occur when applied to long joints/seams in metal, may cause cracking/loss of performance. Additionally, if applied to glass, it can etch the surface and be impossible to remove. Should you have additional questions or require further assistance, please feel free to contact DAP Technical Customer Service at 888-327-8477.

        by|Nov 7, 2022
          Showing 1-4 of 28

          Customer Reviews

          5 out of 5

          • 5 out of 3 reviews
          • 100% recommend this product
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          Showing 1-3 of 3 reviews
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          Rating provided by a verified purchaser
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          • Verified Purchase
          Product was easy to apply.
          Product was easy to apply.
          by
          • Verified Purchase
          • Recommended
          This is the best "caulking" for the hot Southern exposure side of any structure that I've ever us...
          This is the best "caulking" for the hot Southern exposure side of any structure that I've ever used-period! Doesn't have to be for a fireplace at all. It sets up fast and hard, and it washes off your hands with soap and water. It can be painted over very quickly. A lot of the homes around here are dark colored and in the summer can get very hot on the sunny side. This material will stay put where most of the others just can't handle the heat.
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          • Recommended
          2 found this review helpful
          Showing 1-3 of 3 reviews