The curing methods of polysilazane mainly include the following:

Thermal curing
Benefits:
Simple process: Polysilazane can usually be cured by placing it in a specific high-temperature environment for a certain period of time, without the need for additional complex curing agents or chemical reagents. The operation process is relatively simple, easy to control and implement, and suitable for large-scale industrial production applications.
Good curing effect: It can form a highly cross-linked network structure of polysilazane, effectively improving the hardness, strength, thermal stability and other properties of the material. The cured product can also maintain good structural integrity in high temperature environments, and can be used in some applications that require high temperature resistance, such as high-temperature protective coatings in the aerospace industry.
Wide applicability: Most polysilazanes can be thermally cured by selecting the appropriate temperature range. Different types and molecular weights of polysilazanes can obtain curing products with different properties but relatively stable after adjusting the appropriate thermal curing parameters, making it easy to flexibly adjust according to actual needs.
inferiority:
High energy consumption: Continuous provision of high temperature environment is required, especially for some long-term curing or large-scale production situations. Heating equipment running for a long time will consume a large amount of energy, increase production costs, and is not economically efficient from the perspective of energy utilization.
High requirements for equipment: To ensure temperature uniformity and stability during the curing process, it is necessary to equip heating equipment with high precision and good temperature control performance, such as high-temperature ovens. The initial equipment investment cost is relatively high, and the maintenance of the equipment also requires certain labor and material costs.
Easy to generate internal stress: During the rapid thermal curing process, thermal stress is easily generated inside the cured product due to factors such as temperature difference between the inside and outside of the material. When the stress accumulates to a certain extent, it may cause defects such as cracking and deformation in the cured material, affecting its final performance and appearance quality.

Photocuring
Benefits:
Fast curing speed: Under specific wavelengths of light irradiation, such as ultraviolet light, polysilazane can undergo curing reactions in a short period of time, achieving rapid molding and greatly shortening the production cycle. It is very advantageous for some product manufacturing scenarios that require efficient production and fast delivery, such as in the field of electronic packaging where rapid curing sealing materials have obvious advantages.
Energy saving and environmental protection: Compared to thermal curing, which requires continuous heating and consumes a large amount of energy, photopolymerization only needs to consume a certain amount of electricity during the lighting stage to generate the light source required for curing. Moreover, the curing process is rapid and the overall energy consumption is relatively low, which is in line with the production concept of energy saving and environmental protection, reducing energy costs and potential impact on the environment.
Selective curing: It can utilize the directionality and occlusionability of light to achieve selective curing of specific areas. For example, in the field of micro nano manufacturing, by combining photolithography and light cured polysilazane, devices with complex microstructures can be accurately manufactured, which has unique advantages in precision manufacturing.
inferiority:
Limited deep curing: The penetration ability of light is limited, and for thicker polysilazane coatings or products, light may not penetrate evenly into the interior, resulting in incomplete internal curing and affecting the overall curing quality. Therefore, it is generally more suitable for curing applications of thin materials or surface coatings.
Equipment cost and maintenance: It is necessary to equip specialized light source generation devices, such as ultraviolet lamps, and ensure the intensity and wavelength stability of the light source. These devices are often expensive, and with the increase of use time, the light source may experience aging and other problems, requiring regular maintenance and replacement, which increases the cost of use.
The types of applicable polysilazanes are limited: not all polysilazanes can respond well to light curing, and specific photoactive groups need to be present in the molecular structure to achieve effective light curing reactions, which limits their application range in some ordinary polysilazane systems.

Additive curing (often using curing agents and other chemical reagents)
Benefits:
Mild curing conditions: It can usually be cured at room temperature or lower temperatures, without the need for high temperature environments like thermal curing, which avoids the adverse effects of high temperatures on some heat-resistant substrates or surrounding environments. For example, in some scenarios where it is used in conjunction with thermosensitive materials, addition cured polysilazane can be well applied.
Strong adjustability: By selecting different types and amounts of curing agents, as well as adjusting the ratio of curing agents to polysilazane, the rate of curing reaction and the degree of crosslinking of the final curing product can be accurately controlled. This allows for customized production of polysilazane curing products that meet different performance indicators according to specific usage requirements.
Good adaptability to shape and size: During the curing process, there will be no significant deformation or cracking of the material due to factors such as drastic temperature changes. For some products with complex shapes and large sizes, it can ensure good dimensional accuracy and appearance quality after curing, which is beneficial for manufacturing functional components with special shapes.
inferiority:
Residual curing agent problem: If the amount of curing agent added is not properly controlled or the curing reaction is incomplete, some curing agent may remain in the cured product, which can affect the purity, stability, and performance of the material, such as causing a decrease in aging resistance and odor.
High storage and usage requirements: Curing agents generally need to be stored separately, and attention should be paid to moisture and oxidation prevention. When using, they should also be accurately weighed and mixed according to strict operating procedures, otherwise it may affect the curing effect, increase the difficulty of operation and management costs throughout the entire production process.
Possible toxicity issues: Some curing agents themselves have certain toxicity or volatile organic compound (VOC) emissions, and corresponding protective and environmental protection measures need to be taken during use. This not only concerns the health and safety of operators, but also involves issues such as whether the enterprise complies with environmental regulations.

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