Refractory spray coatings and refractory coatings are both commonly used refractory materials. They differ in composition, construction methods and application scenarios.
As a kind of amorphous refractory material, refractory spray coating has become a key material for the maintenance and new construction of industrial kiln linings due to its convenient construction and strong adaptability.
1.Difference in ingredients
Refractory spray coatings are mainly composed of high molecular polymers, inorganic fillers, dispersants, binders, etc., among which high molecular polymers are the main components of the coating. Refractory coatings are composed of refractory aggregates, refractory powders and binders, among which refractory aggregates and refractory powders are the main refractory materials.
2.The difference in construction methods
Refractory spray coatings can be sprayed into coatings in an atomized manner through equipment such as spray guns or nozzles, and have the advantages of convenient, fast and efficient construction. Refractory coatings, on the other hand, require manual or mechanical stirring to mix refractory materials with water or organic matter into a paste, and then apply it to the construction surface through a coating tool.
3.Differences in application scenarios
Refractory spray coatings are mainly used in places that require high temperature protection, such as high temperature equipment, industrial furnaces, heat treatment equipment, etc., and can form thick and dense coatings to improve the high temperature resistance and wear resistance of the equipment. Refractory coatings are mainly used to apply to the surface of various refractory materials such as refractory bricks and castables to improve their wear resistance and corrosion resistance.
In addition, there are other differences between refractory spray coatings and refractory coatings in terms of composition. For example, the addition of high molecular polymers in refractory spray coatings can increase the toughness and wear resistance of the coating, while refractory coatings can improve the plasticity and construction performance of the material by adding an appropriate amount of binder.
In short, although both refractory spray coatings and refractory coatings are refractory materials, they are different in composition, construction methods, and application scenarios. Users should choose according to actual needs and working conditions to achieve the best use effect.