Ceramic high-temperature coatings and organic silicon high-temperature paints have their own advantages in different high-temperature environments. The following is a specific comparative analysis:
Heat resistance limit
Ceramic high-temperature coatings: Ordinary ceramic coatings can withstand high temperatures of around 1500 ℃, while some nano composite ceramic coatings and specially formulated ceramic coatings such as ZS-1023 ultra-high temperature metal oxidation resistant ceramic coatings can withstand high temperatures of over 3000 ℃.
Organic silicon high-temperature paint: General organic silicon high-temperature paint can withstand high temperatures of 100 ℃ -800 ℃, and some with better performance can withstand temperatures of 1000 ℃ -1200 ℃.
high temperature stability 
Ceramic high-temperature coating: It can maintain good stability at high temperatures and is not prone to decomposition, deformation, and other problems. Some ceramic coatings form a dense protective layer at high temperatures, further improving their high temperature resistance and oxidation resistance.
Organic silicon high-temperature paint: It has good stability within its temperature resistance range, but after exceeding a certain temperature, the organic silicon resin will gradually decompose. When the temperature reaches 600 ℃, the decomposition is basically complete.
Mechanical performance
Ceramic high-temperature coating: It has high hardness, high wear resistance, and good impact resistance, which can effectively protect the substrate from mechanical wear and impact at high temperatures.
Organic silicon high-temperature paint: After curing, it has a certain degree of hardness and wear resistance, but compared with ceramic coatings, it is slightly inferior in terms of high hardness and wear resistance.
chemical stability
Ceramic high-temperature coating: It has excellent chemical stability, is resistant to corrosion by chemical substances such as acid, alkali, salt, etc., and can maintain good performance in harsh chemical environments and high temperature conditions.
Organic silicon high-temperature paint: It has good corrosion resistance, but its corrosion resistance may not be as good as ceramic coatings in extreme chemical environments such as strong acidity and alkalinity.
construction technology 
Ceramic high-temperature coatings: The construction process is relatively complex and often requires the use of special spraying equipment and techniques, such as plasma spraying, thermal spraying, etc., which have high requirements for the construction environment and personnel.
Organic silicon high-temperature paint: The construction process is relatively simple, and conventional methods such as brushing and spraying can be used. The construction conditions are relatively easy to meet.

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