Two-Part Refractory Mortar

Two-part refractory mortar is a high-performance material suitable for a wide range of high-temperature insulation applications.
In any industrial setting involving furnaces and high temperatures, insulation is essential to prevent heat loss and protect structures from intense heat.
One common insulation method is to use refractory insulating bricks or heavy insulating bricks. To connect these bricks together, refractory mortar is used as a monolithic material.

Choosing the Right Refractory Mortar

Given the diverse applications of two-part refractory mortar, selecting the appropriate mortar based on the specific needs of each project is crucial. Factors to consider include:

• Operating temperature: The maximum temperature the mortar will be exposed to.
• Chemical environment: The type of chemicals the mortar will encounter.
• Brick type: The type of bricks that need to be bonded with the mortar.
• Application conditions: The environmental conditions during mortar application.

Advantages of Using Two-Part Refractory Mortar

Two-part refractory mortars offer several advantages over conventional mortars, including:

Stronger bonds

In conventional mortars, the bond between bricks rarely becomes sufficiently strong until reaching 1100°C.

Enhanced chemical resistance

Two-part refractory mortars are more resistant to the chemicals present in furnaces, such as gases and molten materials.

Better thermal insulation

Due to their porous structure, these mortars provide better thermal insulation compared to conventional mortars.

Higher resistance to thermal shock

Two-part refractory mortars are more resistant to sudden temperature changes (thermal shock).

Ease of application

These mortars are easy and quick to apply.

How Two-Part Refractory Mortar Works

This refractory mortar consists of two components:
the first component is a silica adhesive (water-glass with a sodium silicate solution formulation) along with a hardener, and the second component is high-alumina cement and sometimes chamotte filler depending on the type of final brick.
When these two components are mixed, a chemical reaction occurs that causes the mortar to harden. This process helps create a strong bond between the bricks that can withstand high temperatures and harsh environmental conditions.

Applications of Two-Part Refractory Mortar

This refractory mortar is used in a wide range of applications, including:

• Furnace walls
• Flue gas ducts
• Burner coatings
• Refractory sculptures
• Other high-temperature industrial applications

Conclusion

This mortar is a high-performance material suitable for a wide range of high-temperature insulation applications. Due to its advantages, such as strong bonds, high chemical resistance, and excellent thermal insulation, this type of mortar is increasingly gaining popularity.