Alkoxy functional groups in room temperature cured silicone resin, low molecular weight. Low molecular weight can make the product very low viscosity, which makes it very good application properties, such as spraying. Similarly, the system has a very high content of active substances, and can prepare high solid coating system with very low VOC content.


Generally, the alkoxy group content in room temperature cured methyl silicone resins is about 15% ~ 30%(mass fraction), and the active substance content in commercially available products is up to 100%. In the field of methyl-phenyl silicone resins, recent developments in catalysis for hydrolysis/condensation reactions have made it possible to use room temperature crosslinked silicone resins on a large scale.
A new type of methyl-phenylsiloxane resin has a methoxyl content of 15%-20% by mass and an active substance content of 90%(solvent: xylene). It is worth noting that its viscosity is low, about 130mPa · s, in the process of coating production only need to add a very small amount of solvent, can achieve flexible coating formulation design. Another advantage is that the smoke generated at the beginning of baking is very low.
Due to regulatory requirements in some application areas, new high solid organic silicone resins have been developed using ethoxy functional derivatives. There is a kind of such resin ethoxy content is 18% ~ 25%(mass fraction), active substance content is 95%(solvent: propylene glycol methyl ether acetate), its viscosity is particularly low, only about 50 mPa · s, especially suitable for the coating system with very low solvent content.