---
product_id: 3535484
title: "Rutland Fireplace Mortar for Fire Brick & Crack Repair - Buff Refractory Cement for Forge, Wood Stove & Panel - High Heat Fire Brick Mortar"
brand: "rutland products"
price: "$44.50"
currency: USD
in_stock: true
reviews_count: 11
url: https://www.desertcart.us/products/3535484-rutland-fireplace-mortar-for-fire-brick-and-crack-repair-buff
store_origin: US
region: United States of America
---

# Covers 99 ft with 1/8" bead Withstands 2000°F heat Bonds firebrick rock-hard Rutland Fireplace Mortar for Fire Brick & Crack Repair - Buff Refractory Cement for Forge, Wood Stove & Panel - High Heat Fire Brick Mortar

**Brand:** rutland products
**Price:** $44.50
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the heat, fix the crack, own the glow.

## Quick Answers

- **What is this?** Rutland Fireplace Mortar for Fire Brick & Crack Repair - Buff Refractory Cement for Forge, Wood Stove & Panel - High Heat Fire Brick Mortar by rutland products
- **How much does it cost?** $44.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3535484-rutland-fireplace-mortar-for-fire-brick-and-crack-repair-buff)

## Best For

- rutland products enthusiasts

## Why This Product

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

## Key Features

- • **Rock-Hard Bonding:** Sets as strong as firebrick itself, ensuring durable, long-lasting repairs.
- • **Perfect Color Match:** Available in Buff, Gray, and Black to blend invisibly with your existing mortar.
- • **Heat-Resistant Powerhouse:** Rated to endure scorching 2000°F, keeping your fireplace flawless through every blaze.
- • **Precision Repair Cartridge:** Easy-to-use 10.3 oz cartridge designed for seamless firebrick chip and crack repairs.
- • **Professional-Grade Coverage:** Covers up to 99 feet with a 1/8" bead—ideal for detailed repointing jobs.

## Overview

Rutland Fireplace Mortar Cartridge is a premium, heat-resistant refractory mortar designed for interior fireplace repairs. It bonds firebricks with rock-hard strength, withstands temperatures up to 2000°F, and comes in a convenient 10.3 oz cartridge with color options to match your mortar. Perfect for precise chip repairs and repointing, it covers approximately 99 feet with a 1/8" bead and meets ASTM E136 and E72 standards.

## Description

This is our original fireplace mortar formulated especially to patch fireplace fireboxes and to bond firebrick to firebrick. Fireplace mortar is a silicate product that when fire cured, sets rock hard - as strong as firebrick itself and withstands 2000° Fahrenheit. Comes in a convenient cartridge for easy repointing of fireplace brick within the firebox. Colors match most mortars. Passes ASTM E136 and E72. 10.3 oz. cartridges.

## Features

- Comes in Buff, Gray and Black
- Perfect for repairing small chips or cracked firebrick, re-pointing mortar joints between firebricks, and bonding firebricks together
- For interior use only and requires heat to cure
- Approximate Coverage: 99 feet with 1/8" bead
- Rated to 2000°F (1090°C)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B000H5R5IS |
| Best Sellers Rank | #52,232 in Kitchen & Dining (See Top 100 in Kitchen & Dining) #53 in Mortar & Pestles |
| Brand Name | RUTLAND PRODUCTS |
| Color | Buff - 63B |
| Compatible Material | Brick |
| Container Type | Cartridge |
| Customer Reviews | 4.6 4.6 out of 5 stars (655) 4.6 out of 5 stars |
| Global Trade Identification Number | 00022624002635 |
| Item Form | Premixed Mortar |
| Item Package Quantity | 1 |
| Item Type Name | Fireplace Mortar |
| Manufacturer | Rutland Products |
| Material Type | Refractory Mortar |
| Model | 63B |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Strong |
| Part Number | 63B |
| Specific Uses For Product | Masonry |
| Unit Count | 10.3 Fluid Ounces |
| Upc | 022624002635 |
| Volume | 10.3 fluid ounces |
| Warranty Description | 12 month warranty |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** RUTLAND PRODUCTS
- **Color:** Buff - 63B
- **Item Form:** Premixed Mortar
- **Material:** Refractory Mortar
- **Special Feature:** Strong

## Images

![Rutland Fireplace Mortar for Fire Brick & Crack Repair - Buff Refractory Cement for Forge, Wood Stove & Panel - High Heat Fire Brick Mortar - Image 1](https://m.media-amazon.com/images/I/619+nJ1QkxL.jpg)

## Questions & Answers

**Q: I see a tube will make 99'xd1/8" beads but how much is recommended between each fire brick? I am building a fire bit and wonna to know how much i need**
A: I would not use a masonry mix.  I have refractory shapes inside my outdoor pit and the stone around and on top was mortared together using standard mortar.  It has cracked over the years (lasted maybe 4 years) and I'm in the process of replacing the joints and adhering the brick back together.  I am using this to fill in the larger cracks and I used Rutland 610 Refractory Cement to bond the stone to the refractory shapes.  Going this route is your best bet.  You could just use the Rutland 610 Refractory Cement with a 1/16" dip and the bond will work.

**Q: can it be painted with the Rutland 1200 * stove paint**
A: No, it's specifically for a fireplace and no other uses and is not paintable

**Q: Does this work with outdoor fire pits? Like in between the cracks of the brick.**
A: I'm not an expert, however, I believe it will work.

**Q: Will this adhere to previously installed Fire Block?**
A: As long as the place you're applying it to is free of debris, this should stick well. It is a thick consistency, so it doesn't really run or sag. I recommend having a small putty knife handy for spreading.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rutland products work great for me every time
*by  on Reviewed in the United States January 12, 2018*

I used it to fix hairline cracks, larger cracks and to coat part of the bottom of a crumbling prefab firebox. See photos. Simple 1 hour maintenance task that you will be glad you did for safety. Not a super neat job but very functional. I did this years ago - worked great - Rutland is great - but it was time for another application (the previous mortar is gray if you can see it) This time I used buff. Should have tried white. Oh well.0- Follow all the instructions on the tube.1- Tools: Vacuum, Caulk gun, 1” putty knife, 6” putty knife. If all you are fixing are cracks, you do not need the 6”. I also recommend a bright light and reading glasses.2- Scrape to loosen all crumbling material then vacuum. Wet the areas to be fixed as it says on the tube.3- Cut the tip small and pierce the inner seal - most caulk guns have a cutter plus a swiveling stick to pierce the inner seal. Then do the narrow cracks first. After caulking the cracks, smooth them with the 1” to press it in better and smooth your work.4- Cut more off of the tip to make a bigger hole. Squeeze out an ample amount onto any deteriorating areas, press into voids and smooth with the 6”. Use the 1” to get excess off and scrape off what sticks to the 6” so you can use/reapply it.5- Easy cleanup by scraping tools against each other to remove excess, get more off with a paper towel and then rubbing with water.

### ⭐⭐⭐⭐⭐ Worked perfectly to fix my 30 year old cracked Big Green Egg firebox
*by  on Reviewed in the United States April 3, 2026*

This worked really well to fix my 30 year old cracked Big Green Egg firebox This applies easily and cures and fires to a hard fexture.

### ⭐⭐⭐⭐⭐ Worked Very Well on Small Cracks
*by  on Reviewed in the United States February 12, 2026*

I had 30 year old fireplace panels with a few cracks hear and there. Pulled them out , cleaned them and applied mortar as per the directions. Worked great and after 3 months burning weekly fires has held up perfectly. Couldn't ask for anything better. Just follow the directions. ...

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-12*