---
product_id: 649139999
title: "25 lb. Pail of Dry-Mix Refractory Cement, High-Temperature Castable Refractory Mortar for Masonry Repair"
brand: "cleanburn"
price: "¥102567"
currency: JPY
in_stock: true
reviews_count: 5
category: "Clean Burn"
url: https://www.desertcart.jp/products/649139999-25-lb-pail-of-dry-mix-refractory-cement-high-temperature
store_origin: JP
region: Japan
---

# 2700°F heat resistance fills large cracks & gaps castable & moldable 25 lb. Pail of Dry-Mix Refractory Cement, High-Temperature Castable Refractory Mortar for Masonry Repair

**Brand:** cleanburn
**Price:** ¥102567
**Availability:** ✅ In Stock

## Summary

> 🔥 Mold the heat, master the craft!

## Quick Answers

- **What is this?** 25 lb. Pail of Dry-Mix Refractory Cement, High-Temperature Castable Refractory Mortar for Masonry Repair by cleanburn
- **How much does it cost?** ¥102567 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/649139999-25-lb-pail-of-dry-mix-refractory-cement-high-temperature)

## Best For

- cleanburn enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Durability:** Strong, long-lasting mortar designed to fill large cracks and withstand intense thermal cycles.
- • **Pro-Grade Reliability:** Trusted by forge builders and outdoor oven enthusiasts for consistent, professional results.
- • **Unmatched Heat Endurance:** Withstands scorching temperatures up to 2700°F, perfect for fireplaces and forges.
- • **Effortless Custom Molding:** Castable dry-mix formula lets you shape and repair with precision and ease.
- • **Versatile Masonry Solution:** Ideal for tuck-pointing, resurfacing, and setting firebricks in high-temp environments.

## Overview

Cleanburn Castable Refractory Cement is a 25 lb. high-temperature dry-mix mortar engineered to endure up to 2700°F. Its castable nature allows for easy shaping and repair of masonry, making it ideal for fireplaces, forges, and outdoor ovens. Durable and strong, it fills large cracks and secures firebricks with professional-grade reliability.

## Description

Introducing the Cleanburn Castable Refractory Cement, a superior quality dry-mix cement that is perfect for high temperature masonry repairs. This 25 lb. pail of refractory cement is designed to withstand temperatures up to 2700°F, making it an ideal solution for your fireplace and fire brick applications. The Cleanburn Castable Refractory Cement is more than just a high temperature cement. It offers exceptional adhesion due to its high refractory nature, making it a strong and durable option for your masonry projects. This refractory mortar can be used to secure fire bricks, fill large gaps or repair cracked firebricks. This refractory cement castable is an excellent choice for anyone looking for a reliable and high-quality refractory mortar. The Cleanburn refractory cement is also suitable for casting into custom shapes to replace worn-out firebrick or to create firepits or outdoor ovens. Invest in Cleanburn Castable Refractory Cement for a high-quality, reliable, and durable solution to your masonry repair needs. Your satisfaction is our priority, and we're confident that our product will exceed your expectations. Trust Cleanburn for all your high temperature, refractory cement needs!

Review: I have used this product to line my forge muliple times and I gotta say it is incredibly durable and holds up to forge welding temperatures extremely well. I use a forced air propane forge and it gets up to welding temp pretty much every time I turn it on. Ive had to reline my forage maybe once a year using this product and all I have to do is just add more to the outside layer and it's good to go for another at least 6 months highly recommended. It holds up to borax flux very well also. Yes its thick and has aggregate.
Review: The bucket of mix, when i opened it i found the mix was to course, the stones were to big, did not mix well and the finished product was very rough.

## Features

- Cleanburn Castable Refractory Cement is a dry-mix cement ideal for masonry repair. Its castable nature allows for easy application and molding to desired shapes.
- This castable refractory cement high temp product withstands extremely high temperatures making it perfect for use in fireplaces, outdoor ovens, and other high-heat environments.
- Designed for a range of applications, our high temp cement can be used for tuck-pointing. It is durable and strong and can be used to fill large holes or cracks in masonry. Once it is heat cured, it can withstand temperatures of up to 2700 degrees Fahrenheit.
- This castable refractory cement is a ready mixed mortar making it ideal for applications such as setting, coating or resurfacing. May require layering for masonry joints over 1/4" thick.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WFHGZLS |
| Are batteries included? | No |
| Brand | CleanBurn |
| Colour | Gray |
| Country of Origin | USA |
| Customer Reviews | 4.1 4.1 out of 5 stars (297) |
| Date First Available | 9 January 2020 |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Volume | 11829.4 Millilitres |
| Item Weight | 11 kg 300 g |
| Item model number | Cleanburn Castable Refractory Cement |
| Manufacturer | CleanBurn |
| Material | Cement |
| Model number | Cleanburn Castable Refractory Cement |
| Net Quantity | 400.0 Ounce |
| Package Dimensions | 28 x 27.3 x 27.2 cm; 11.34 kg |
| Package Information | Pail |
| Special Feature | Strong |
| Specific Uses For Product | Masonry, Repair, High-temperature environments |
| UPC | 853320006609 |
| Viscosity | Medium to High |
| Viscosity Level | Medium to High |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** CleanBurn
- **Item Form:** Powder
- **Material:** Cement
- **Special Feature:** Strong
- **Specific Uses For Product:** Masonry, Repair, High-temperature environments

## Images

![25 lb. Pail of Dry-Mix Refractory Cement, High-Temperature Castable Refractory Mortar for Masonry Repair - Image 1](https://m.media-amazon.com/images/I/61ewweRafCL.jpg)

## Questions & Answers

**Q: Can it be used to coat ceramic fiber insulation in a foundry? If so, how thick and thin can the layers be applied?..**
A: I used CleanBurn over a ceramic fiber blanket that I used to cover the sheet metal firebox and flue in my outdoor fireplace.  I covered the blanket with chicken wire and patted the mortar into it.  Then I coated with another thin coat of mortar.  It set up really hard in 24 hours.  Total thickness 3/4" to 1”.  I finally coated the whole box with coloring and some regular mortar.  It looks like stucco now... Pretty nice.  Inside a foundry you'll need the chicken wire to hold the blanket up and give the Cleanburn something to stick to. -  Mikee

**Q: What are the drying procedures for this product? Can it be used in a forge?**
A: Hello,
For drying time, the cement will set between 9 & 10 hours. Heat can be applied 24 hours after the mix has been set. This product can also be used in forges.
Thank you,

**Q: Is this suitable and safe for the cooking surface of an outdoor pizza oven?**
A: I used this to repair a chiminea. I would not use it as an actual cooking surface without researching all the materials in it. You could cover the surface with a good quality clay. That would work. Nice product. Easy to work with.

**Q: How thick does the cement have to be for the floor of a fire box in a coal fired furnace? The fire box is 24" in diameter. How many pails will I need?**
A: Depends on a couple things like what type of base your pouring it on and if it has insulation or not; example; if the base is a sturdy steel plate, then that will help hold the form better and the less refractory needed.. But if the base is unstable or flexes, then you will need a thicker layer of refractory.. Also the insulation factor is relatively low with this refractory cement, so the thicker the layer the better the insulation.. but one pail should give you a decent layer on a 24” diameter fire box.. and I’d say a 1”+ layer should be okay.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 11 October 2022*

I have used this product to line my forge muliple times and I gotta say it is incredibly durable and holds up to forge welding temperatures extremely well. I use a forced air propane forge and it gets up to welding temp pretty much every time I turn it on. Ive had to reline my forage maybe once a year using this product and all I have to do is just add more to the outside layer and it's good to go for another at least 6 months highly recommended. It holds up to borax flux very well also. Yes its thick and has aggregate.

### ⭐ Review
*by A***R on 12 September 2023*

The bucket of mix, when i opened it i found the mix was to course, the stones were to big, did not mix well and the finished product was very rough.

### ⭐ Review
*by V***5 on 8 February 2026*

Total garbage. It looks like they just broke up garbage clicker and put it in a bucket. The aggregate is huge. There is barely any cement. I tried floating some of the cement out by filling a paint mixing cups with water and there was barely any paste when I washed the rocks. If you want ugly sharp little Grey rocks at a high price then this is perfect for you. If you want cement that binds to anything then buy anything else. To the guy who said "of course it has rocks in it that is called aggregate because its refractory concrete" No. IT IS SOLD as REFRACTORY CEMENT. Cement is a fine powder. No aggregate. This stuff is broken up garbage with 15% cement in it maybe.

## Frequently Bought Together

- Cleanburn 25 lb. Pail of Dry-Mix Refractory Cement, High-Temperature Castable Refractory Mortar for Masonry Repair
- Ceramic Fiber Insulation, 1" Thick x 16" x 48", 2400F Fireproof Insulation Blanket, 3026E
- Rutland Products Fire Brick, 6 Count, Pack of 1

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-05*