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The main differences between refractory spray coatings and castables

Refractory spray coating is composed of refractory material with certain particle gradation, chemical bonding agent and admixture. Unshaped refractory material used for repairing the lining of thermal equipment by spray construction method is a main type of spray material. , So what is the difference between it and the castable? Then let us explain the specific differences between them.
Refractory spray coatings can be divided into three types: wet spray repair, dry spray repair, and flame spray repair according to the state of spraying materials and spray methods. Generally, wet spray repair can only be used for thin layer repair, and dry spray repair can be used for thicker coatings. Layer spray repair, widely used, flame spray repair, can obtain dense spray coating layer, high bonding strength, strong erosion resistance and strong erosion resistance.
Castables, also known as refractory castables, are granular and powdery materials made of refractory materials with a certain amount of binder. They have high fluidity and are suitable for irregular refractory materials formed by pouring. Compared with other amorphous refractory materials, the binder and moisture content are higher, and the fluidity is better. Therefore, the amorphous refractories have a wide range of applications. The materials and binders can be selected according to the conditions of use, and can be directly cast into The liner is used, and it can be made into precast blocks by pouring or shaking.
The above is the summary of the differences between refractory spray coatings and castables. I hope that it will be helpful to everyone. In addition, everyone must make reasonable purchases according to their needs when buying, and try to reduce the use cost.
Editor: dq