In terms of raw materials
Purity and Quality: Taking ceramic coatings as an example, high-quality brands will use high-purity ceramic materials such as alumina and zirconia to ensure the coating's high temperature resistance, wear resistance, and corrosion resistance; However, some small brands may use raw materials with high impurities, which can lead to unstable coating performance and easily cause problems such as cracking and peeling. In metal coatings, the purity of metal materials and alloy ratios vary between brands. For example, in nickel based high-temperature alloy coatings, high-quality brands strictly control the content of elements such as chromium and molybdenum in the alloy to improve the high-temperature strength and oxidation resistance of the coating, while inferior brands may cause premature failure of the coating at high temperatures due to unreasonable ratios.
Additives and additives: Excellent brands can enhance the adhesion, flexibility, and heat resistance of organic high-temperature resistant coatings by adding additives such as specific coupling agents to strengthen the adhesion between the coating and the substrate; But some bad brands may add inferior or inappropriate additives, which can affect the quality of the coating. For example, in silicone coatings, if the quality or dosage of the coupling agent is poor, it can lead to insufficient adhesion of the coating.
In terms of production technology
Preparation technology: In the thermal spraying process, large brands usually use advanced technologies such as plasma spraying and supersonic flame spraying, which can accurately control the spraying parameters, make the coating particles uniform and dense, and have high bonding strength with the substrate; Small brands may use ordinary flame spraying due to outdated technology and equipment, resulting in high porosity and poor adhesion of the coating. For chemical vapor deposition (CVD) and physical vapor deposition (PVD) processes, high-quality brands can accurately control the temperature, pressure, gas flow rate and other parameters of the deposition process to prepare high-quality coatings, while small brands may have difficulty ensuring the stability of the process, resulting in uneven coating thickness and inconsistent performance.
Quality control system: Renowned brands have complete quality testing equipment and strict testing processes, conducting multidimensional testing on raw materials, semi-finished products, and finished products, such as testing the thickness, hardness, adhesion, high temperature resistance, etc. of coatings. Only when all indicators are qualified can they be shipped out of the factory; Some small brands have weak quality inspection links, lack necessary testing equipment and standards, resulting in products with quality defects entering the market.
In terms of research and development and technical support
R&D investment: Internationally renowned brands invest heavily in the research and development of high-temperature resistant coatings, continuously launching new products and technologies with better performance, such as developing new ceramic coatings or composite coatings that can maintain stable performance at higher temperatures; However, some small brands have limited research and development capabilities and can only imitate existing products in the market, unable to master core technologies, making it difficult to improve coating quality.
Technical Services: Major brands have professional technical teams that can provide customers with comprehensive technical support and solutions. They can customize suitable coating products according to customers' different needs and provide technical guidance during use; Small brands may lack professional technical personnel and be unable to provide effective technical services to customers, making it difficult for customers to receive timely solutions when using coatings.

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