What should be used for gunning installations?

The correct approach for gunning installations is to use methods that allow for efficient and effective application of refractory materials. Gunning refers to the process where dry materials are mixed with water and propelled at high velocity onto a surface, typically using specialized equipment. This method not only provides a strong bond and uniform thickness but also allows for complex shapes to be easily formed.

Choosing to gun or cast the refractory enhances the installation's integrity and performance. Gunning can be especially beneficial in environments where additional mechanical strength or durability is required, such as in high-temperature applications. It enables quick application over large areas, thus improving work efficiency and reducing downtime.

In contrast, the other methods mentioned, such as hand packing or traditional casting, may not provide the same benefits. Hand packing can be labor-intensive and may result in inconsistencies in thickness or density, while casting alone might not achieve the necessary adhesion or coverage in specific applications. Additionally, the use of a pneumatic rammer, while useful in some contexts, does not apply universally to all gunning installations, and requiring it for all scenarios would be impractical.

In summary, utilizing gunning or casting methods for installations leverages the strengths of each technique, ensuring a strong, durable application suitable for the demands of high