Your Professional Refractory Mortar Supplier
Shandong Luming New Materials Technology Co., LTD covers an area of 62 acres(approx. 41,000㎡),offers end-to-end production solutions. We are fully equipped with facilities for raw material crushing and pulverizing, automated castable batching, precast block molding, tunnel drying, high-temperature shuttle kiln firing, and precision processing of both precast and fired products, ensuring we can fulfill the requirements of customers in any industry.Shandong Luming New Materials Technology Co., LTD Founded in 2003, it is the largest unshaped refractory material production enterprise in Shandong Province, located in Zhoucun District, Zibo City.
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Fireclay Refractory MortarShandong Luming Advanced Materials Co., Ltd., a leading enterprise in China's refractory industry with over 20 years of expertise, proudly presents our Fire Clay Refractory Mortar - a...view more
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High-alumina Refractory MudShandong Luming New Materials Co., Ltd., a pioneer in China's refractory industry with over 20 years of expertise, proudly introduces High Alumina Refractory Mud—a premium-grade material...view more
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Mullite MortarAs a leading enterprise in China's refractory materials industry with over 20 years of professional expertise, Shandong Luming Advanced Materials Co., Ltd. proudly presents our Mullite Mortar - a...view more
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Corundum Refractory SlurryShandong Luming New Materials Co., Ltd., a benchmark enterprise in China's refractory industry with over 20 years of professional expertise, proudly presents the Corundum Refractory Slurry—a...view more
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Silicon Carbide Refractory MudShandong Luming Advanced Materials Co., Ltd., a leading enterprise in China's refractory industry with over 20 years of expertise, proudly presents Silicon Carbide Refractory Mud—an...view more
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Silica Refractory MudShandong Luming Advanced Materials Co., Ltd., a leading enterprise in China's refractory materials industry with over 20 years of technical expertise, proudly presents Silica Refractory Mud—a...view more
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Magnesia Refractory MudShandong Luming Advanced Materials Co., Ltd., a pioneer in China's refractory industry with over 20 years of expertise, proudly introduces Magnesia Refractory Mud—a cutting-edge high-temperature...view more
Why Choose Us
Quality Assurance
Our company obtained ISO9001 International Quality Management System certification from the China Quality Certification Centre (CQC) in 2006.
After-Sale Service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.
Custom-Engineered Solutions
By pioneering new energy-saving refractory materials and innovating kiln lining designs, we dedicate ourselves to helping clients achieve energy conservation and emission reduction goals.
Production Market
We have established long-term business cooperation and joint product R&D projects with leading design institutes, including:Dalian Design & Research Institute of ACRE (Coking & Refractory Engineering Consulting Corporation, MCC)),Shandong Metallurgical Design Institute Co., Ltd,Changsha Research Institute of Mining and Metallurgy (CRIMM), Minmetals.
Advantages of Refractory Mortar
Durability Beyond Compare
One of the primary advantages of using refractory mortars lies in their exceptional durability. Unlike conventional mortars, refractory versions are specially formulated to withstand high temperatures and harsh conditions, making them ideal for applications in furnaces, kilns, and other heat-intensive environments. This durability ensures that structures maintain their integrity over extended periods, contributing to long-term cost savings and reduced maintenance efforts.
Enhanced Thermal Performance
Refractory mortars excel in providing enhanced thermal insulation, a crucial factor in industries where temperature control is paramount. Whether used in the construction of industrial furnaces or heating chambers, these mortars contribute to maintaining optimal temperatures, improving overall energy efficiency, and minimizing heat loss.


Precision Application for Complex Structures
Construction projects often involve intricate designs and complex structures. Refractory mortars offer precision in application, allowing builders to work with confidence in shaping and assembling intricate components. This characteristic ensures that the mortar effectively bonds refractory bricks and other materials, creating robust and stable constructions.
Resistance to Chemical Corrosion
In harsh industrial environments, exposure to corrosive chemicals is a common challenge. Refractory mortars are designed to resist chemical corrosion, ensuring the longevity of structures even in aggressive settings. This resistance makes them a reliable choice for applications in chemical processing plants and similar industries.
Specification
|
Property |
Value |
|
Al₂O₃ Content |
45% ±1% |
|
Refractoriness |
≥1650℃ |
|
Cold Bond Strength |
≥1 MPa (110℃) |
|
Hot Bond Strength |
≥3 MPa (1200℃) |
|
Water Addition |
18-22% |
Types of Refractory Mortar
Hydraulic Setting Mortar
Along with its non-soluble water nature, this is by far the best mortar. It is necessary to combine aggregates and binders for up to six hours. The mortar must be mixed at a high temperature of 1499 degrees Celsius.
Fireclay Refractory Mortars
Fireclay refractory mortar is commonly used for adhesive bonding and repairing blast furnaces, hot coke ovens, absorbing pit furnaces, heat transfer, boilers, as well as other high-quality clay brick industrial furnaces masonries.
Air Drying Mortar
The air-drying mortar takes longer to dry than its name implies. As a result, it is recommended in hot and dry climates. This combination is also known as premixed Refractory mortar including clay, molten silicate, and particles. Its attributes are inferior to those of the former.
High Alumina Refractory Mortars
As the main material, high alumina clinker plays a central role in the production of refractory mortar which is bound with a mild-clay or chemical bond. This material is commonly used as lining for glass furnaces, coke ovens, and hot blast stoves.
Silica Refractory Mortars
Various industrial furnaces use quartz refractory mortar for the installation and repair of blast furnaces, coke ovens, warm blast stoves, glass melting furnaces, and acid melting furnaces.
Mullite Refractory Mortar
In steel, non-ferrous metals, and petrochemical plants, mullite refractory mortar is commonly used for repairing and laying mullite bricks, as well as constructing high-temperature furnaces and kilns.
Refractory mortar is an alchemical wonder, combining elements that resist the strongest of fires. Fundamentally, it is silica, a material known for its ability to withstand high temperatures without losing strength. When combined with alumina, it increases the mortar's thermal resistance, therefore strengthening it to resist continuous heat and pressure. Another strong component, magnesia, gives special stability and improves the mortar's resistance to chemical reactions and integrity preservation. These components used together make a composition designed to last, forging a link difficult for heat or time to readily reverse.

Application Steps for Refractory Mortar
Preparation
Lightly dampen the work area and firebricks to prevent them from absorbing water from the mortar, which could affect the mortar's strength.
Mixing
If using a dry mix, add the specified amount of water to achieve a workable consistency. The mortar should form a ball that doesn't slump or break apart when tossed.
Application
Apply a thin, even layer of mortar onto the back of the firebrick or the surface to be coated.
Setting
Place the firebrick into position and tap it gently to ensure a consistent joint thickness (around 1/16 inch).
Clean-Up
Remove any excess mortar that oozes out with a small trowel or sponge and clean water immediately.
Curing
Allow the mortar to set and cure for a minimum of 24 hours at 60°F (15.5°C) or above before applying heat, and cure slowly before initial firing to prevent cracking.

Generally, maximum thickness of refractory mortar in high quality oven is 6 mm.
If mortar thickness is greater than 6 mm, it shrinks and left space between bricks and eventually allow bricks to move.
Mortar thickness greater than 6mm is allowed for locations away from the hot face.
Refractory mortar shall be used only for the brick structure to stay strong and stable. It shall not be left exposed on the hot-face.
Refractory mortar is not applicable for filling holes or big spaces or gaps between firebricks.
Use recommendation of applicable code to specify number of days between the end of construction and exposing the mortar to high temperature.
Fireplaces: Used to construct the firebox and set firebricks.
Chimneys: Essential for setting clay flue liners and smoothing the interior surface of the smoke chamber.
High-Temperature Ovens
Used in pizza ovens, bread ovens, and other high-temperature cooking or industrial applications.
Fire Pits and Barbeques
Ideal for the construction and repair of fire pit rings and barbeque structures.
Industrial Equipment
Found in applications such as boilers, kilns, and incinerators due to its heat resistance and thermal characteristics.
FAQ
As one of the most professional refractory mortar manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy refractory mortar at competitive price from our factory.
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