Compared with other coating materials, hydrophilic polysilazane coatings have the following advantages and disadvantages:
advantage
Good adhesion:
It can form strong bonds with various types of substrates, such as metals, ceramics, glass, and some polymer materials. This is due to the unique molecular structure of polysilazane, which can be tightly attached to the substrate through various means such as chemical bonding and physical adsorption. Compared with some ordinary coating materials, it is less prone to poor adhesion problems such as peeling and flaking.
Excellent chemical stability:
It can withstand the erosion of various chemical substances, such as maintaining good stability in acidic and alkaline environments, and is not easily corroded or decomposed. This makes it more advantageous than many organic coatings in some harsh chemical working conditions, and can maintain the integrity and functionality of the coating for a long time.
Adjustable hydrophilicity:
By changing certain functional groups in the molecular structure or conducting appropriate modification treatments, the degree of hydrophilicity can be precisely adjusted to meet the specific requirements of different application scenarios for hydrophilicity. The flexibility is relatively high, which is difficult for some traditional coatings to achieve.
Good film-forming properties:
The ability to form a uniform, continuous, and dense film on the surface of the substrate ensures the consistency and reliability of the coating in terms of hydrophilicity and other functions. It also helps to provide comprehensive protection for the substrate, avoiding damage from external environmental factors.
disadvantage
Relatively high cost:
The synthesis process often requires complex processes and specific raw materials, resulting in much higher production costs compared to some common coating materials such as acrylic coatings and alkyd resin coatings, which to some extent limits its large-scale and low-cost application range.
The curing conditions are relatively harsh:
Usually, it requires specific temperature, humidity, or the action of some catalysts to fully cure and form coatings with good performance, unlike some water-based coatings that can dry and form films under a wide range of conditions at room temperature and pressure. This brings certain limitations to the adaptability of actual construction operations and application scenarios.
Scratch resistance needs to be improved:
Although it can form a dense film layer, it is prone to scratches or even damage when scratched or rubbed by sharp objects, which affects its hydrophilicity and protective functions. Compared with some inorganic ceramic coatings with high hardness and good wear resistance, it has shortcomings in this regard.

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