Chemical Structure and Composition
The main chain of silicone resin molecules is composed of silicon oxygen bonds (- Si-O -), and organic groups such as methyl and phenyl are usually connected to the side chains. This unique structure endows it with some characteristics of both inorganic and organic materials.
Physical and chemical properties
Good thermal stability: able to withstand high temperatures, not easily decomposed or deformed in high-temperature environments, can be used for a long time in a wide temperature range, generally maintaining good performance at temperatures of 200 ℃ or even higher. Some special silicone resins can withstand higher temperatures.
Excellent weather resistance: It has strong resistance to external environmental factors such as ultraviolet radiation and ozone, and is not prone to aging, fading, powdering, and other phenomena when exposed to outdoor atmospheric environments for a long time. Therefore, it is often used in outdoor facilities and other scenarios that require long-term environmental testing.
Strong electrical insulation: Silicone resin has a high electrical resistivity, which can effectively prevent current from passing through. It can be used as an insulation material in the field of electronic appliances to ensure the safe and stable operation of electrical equipment.
Good chemical stability: It has good tolerance to most chemical reagents, such as acids, bases, salt solutions, etc., and is not easily prone to chemical reactions with these substances, making it suitable for use in various complex chemical environments.
Good hydrophobicity: Its surface energy is low, and water is difficult to spread on its surface, presenting a good hydrophobicity effect. For example, some waterproof coatings use silicone resin components to achieve waterproofing purposes.
classification
According to the type of curing reaction, it can be divided into condensation type silicone resin and addition type silicone resin. Condensation type silicone resin is cured through condensation reaction, during which small molecule by-products are generated; Additive formed silicone resin is cured through the addition reaction between unsaturated bonds such as double bonds, and the curing process is relatively cleaner without the production of small molecules.
Classified by structural form: there are linear silicone resin, bulk silicone resin, etc. Linear silicone resin molecular chains are relatively linear, while bulk silicone resin has a highly cross-linked three-dimensional network structure, with the latter often exhibiting more outstanding rigidity, hardness, and other properties.
Common application areas
Electronic and electrical industry: used for manufacturing insulation devices, packaging materials, etc., such as packaging and protecting electronic components from external environmental interference and physical damage, ensuring the normal operation of electronic equipment.
Coatings industry: It can be used as a key component in high-temperature resistant coatings, waterproof coatings, weather resistant coatings, etc. After using silicone resin coatings on industrial equipment surfaces, building exterior walls, etc., its protective performance and service life can be greatly improved.
In the aerospace field, due to its excellent properties such as high temperature resistance and weather resistance, it can be applied to the surface protection of some components of aircraft, high temperature resistant coatings, etc., to meet the harsh conditions of aerospace use.
Automotive industry: Used in engine components, exterior paint, and other parts of automobiles, it helps to improve the high temperature resistance, chemical corrosion resistance, and weather resistance of components, ensuring the performance and durability of automobiles.
In short, silicone resin plays an indispensable role in many industrial and civilian fields due to its unique properties.

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