---
product_id: 339085961
title: "Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar"
brand: "dap"
price: "€ 46.73"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/339085961-dap-18854-12-pack-10-ounce-stove-and-fireplace-mortar
store_origin: GR
region: Greece
---

# 1-hour application time Withstands up to 2000°F ASTM E136 non-combustible certified Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar

**Brand:** dap
**Price:** € 46.73
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the heat, own the hearth!

## Quick Answers

- **What is this?** Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar by dap
- **How much does it cost?** € 46.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/339085961-dap-18854-12-pack-10-ounce-stove-and-fireplace-mortar)

## Best For

- dap enthusiasts

## Why This Product

- Trusted dap brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Use:** Ideal for wood frame construction and fireplace maintenance—your all-in-one heatproof sealant.
- • **Certified Safety:** Meets ASTM E136 standards for non-combustibility—trust the seal that professionals rely on.
- • **Precision Repair:** Perfect for patching and tuckpointing chipped or broken firebricks with lasting adhesion.
- • **Effortless Application:** Smoothly applies with any standard caulk gun and sets rock hard when fired.
- • **Fireproof Fortification:** Endures extreme heat up to 2000°F, keeping your fireplace flawless and safe.

## Overview

Dap 18854 Stove and Fireplace Mortar is a high-performance silicate cement designed for repairing and sealing firebricks. Certified non-combustible per ASTM E136, it withstands temperatures up to 2000°F, sets rock hard when fired, and applies easily with a standard caulk gun. Perfect for professional-grade fireplace maintenance and wood frame construction sealing.

## Description

Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar

## Features

- Non-combustible silicate cement used for patching chipped firebrick in fireplaces and sealing
- Used for applications in wood frame construction where an ASTM E136 non-combustible sealant
- Adheres firmly to the firebrick when wet or dry. Sets rock hard when fired
- Use to tuck point between firebricks and to repair broken firebricks
- It has been d in accordance with ASTM E136 and withstands temperatures up to 2,000° F

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 29.21 x 5.08 x 5.08 cm; 576.06 g |
| Part number | 18854 |
| Item display length | 10 centimeters |
| Item display weight | 400 Grams |
| Material type | Silicate Cement |
| Capacity | 10 Fluid Ounces |
| Item volume | 10.1 Fluid Ounces |
| Department | Unisex-Adult |
| Manufacturer | Dap Incorporated |
| Item model number | 7079818854 |
| ASIN | B0006MXS4C |

## Product Details

- **Colour:** Black
- **Brand:** DAP
- **Item weight:** 576 g
- **Liquid volume:** 10 Fluid Ounces
- **Full cure time:** 2 Hours

## Images

![Dap 18854 12 Pack 10-Ounce Stove and Fireplace Mortar - Image 1](https://m.media-amazon.com/images/I/61ZlRnVApxL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: I'm looking to attach some tin tiles to sheetrock. Think this will work?**
A: I think that you would have better results using the following item: "Dap 27450 Beats The Nail All-Purpose Construction Adhesive 10.3-Ounce".  Make sure that you remove any oily film that may be on the tin before applying the construction adhesive.

**Q: Can this be used to install wood stove door gaskets?**
A: YES!

**Q: Is the item waterproof? Can it be used outside for repairs in all weather conditions?**
A: Yes it is waterproof.
I used it around my flue pipe on the roof.
Stuff works great. I would do 2 layers instead of one.

**Q: 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**
A: I used this to seal the storm collar and flashing around my class A chimney penetrating through my roof.  That installation definitely was not fire-cured, and has held up extremely well.  It does cure very hard, but has performed well for my application.  I check, the seals when I clean my chimney every year, and 11-years in all is still well.

## Frequently Bought Together

- DAP 7079818854 High Heat Mortar Fire Stop Caulk, 10 Fluid Ounces, Black
- Minuteman International Cast Iron Clean-Out Door, 8 by 8-Inch,Black
- Minuteman International Cast Iron Ash Dump, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/339085961-dap-18854-12-pack-10-ounce-stove-and-fireplace-mortar](https://www.desertcart.gr/products/339085961-dap-18854-12-pack-10-ounce-stove-and-fireplace-mortar)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-28*