Coating appearance effect
Spray coating construction: It can form a relatively uniform, flat, and consistent thickness coating, with a delicate texture on the appearance, especially suitable for large areas of building exterior walls and other parts. It can maintain the consistency of the overall appearance of the building well, without obvious brush marks or defects, and can achieve different matte or glossy effects by controlling the parameters of the spray gun.
Rubbing construction: If operated properly, the coating can also be ensured to be uniform, but compared to spraying, there may be slight brush marks on the appearance. However, for some building surfaces with texture requirements or retro style, appropriate brush marks can actually add unique charm. Moreover, wiping has a better coverage effect on details such as corners, and can provide more detailed protection for complex architectural shapes.
Immersion coating construction: For the components after immersion coating, the overall coating wrapping is good, which can cover all surfaces in all directions. However, if the operation is improper during the removal and drying process, there may be local coating accumulation or flow marks, affecting the appearance. Moreover, immersion coating is difficult to achieve a large area uniform effect like spraying, which is more suitable for small and specific shaped building components.
Roll coating construction: It can achieve rapid coating on a large area, and the appearance of the coating is relatively flat. However, slight roller marks may be left on the surface of the coating due to factors such as the texture of the roller. However, in some indoor walls and other areas of buildings that do not require extremely high appearance requirements, roll coating is also an efficient and economical choice.
Coating thickness and protective performance
Spray coating construction: By controlling the number of spray coatings and the amount of each coating, the thickness of the coating can be accurately controlled. Generally, after multiple spray coatings, the appropriate thickness range can be achieved, which can stably exert protective properties such as anti graffiti, waterproofing, and anti-corrosion. But if the spraying is uneven, it may lead to insufficient local thickness, affecting the protective effect.
Rubbing construction: It is relatively difficult to control the thickness of the coating to be as precise as spraying, and construction personnel often need to rely on their experience to apply it multiple times to achieve the desired thickness. However, due to the closer contact between the coating and the building surface during wiping, the adhesion may be better at the same thickness, and the protection of the building surface may be more durable, such as better resistance to external wind and sand erosion and rainwater erosion.
Dip coating construction: Dip coating can usually form a relatively thick coating on the surface of components. As long as the immersion is sufficient and the drying and curing are good, its protective performance, especially for small components, is strong. For example, for small metal components used in building decoration, it can effectively prevent rust, corrosion, etc., and also has good wear resistance because thicker coatings can withstand more external friction.
Rolling coating construction: The thickness of the rolling coating can also be increased by multiple rolling coatings, but uneven thickness is prone to occur at corners and other areas. In contrast, its overall protective performance is at a moderate level, suitable for internal areas of buildings with less stringent protection requirements, and can meet basic needs such as moisture resistance and prevention of minor pollution.
Construction efficiency and cost
Spraying construction: It is suitable for large-scale rapid construction with high efficiency, especially for large-scale protection projects such as high-rise building exterior walls, which can cover a large area in a relatively short time, but requires professional spray gun equipment and supporting air compressors, etc. The equipment cost is relatively high, and the utilization rate of paint may be slightly lower due to factors such as spray loss.
Rubbing construction: The construction speed is relatively slow, especially for large-scale construction, where labor costs are high. However, the tools are simple, only common tools such as brushes are needed, and there is less paint waste. It is suitable for small areas, high detail requirements for building parts, or scenes with special requirements for construction accuracy.
Dip coating construction: The efficiency is still acceptable for batch processing of small components, but it is not suitable for overall construction of large buildings. Dip coating requires larger containers to hold the coating, and the amount of coating used is relatively large. In terms of cost, processing a large number of small components may have certain advantages, but for individual large building components, the cost is higher. At the same time, issues such as drying the site after dip coating also need to be considered.
Rolling coating construction: The operation is relatively simple, and the construction efficiency is between spraying and wiping. For large areas of indoor walls, the construction cost is relatively low, and the tool cost is not high. However, there are also situations where additional manual repair is required for corner treatment, which will to some extent affect the overall efficiency and cost.
In summary, different usage methods of polysilazane in building protection have their own advantages and disadvantages. In practical applications, it is necessary to comprehensively consider various factors such as the specific type of building, protection requirements, construction conditions, and cost, and choose the most suitable usage method to achieve the ideal protection effect.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150K.       
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.