Types of pure silicone resin

Most silicone resins are copolymers of methyl and phenyl substituted monomers. Based on the type of organic substitution, the two main types of pure silicone resins are high-methyl silicone resins and high-phenyl silicone resins. 

High-methyl silicone resins are polymethylsiloxanes that have methyl groups as the predominant organic substitution and hence have the lowest carbon content. Pigmentation of these binders is difficult, and their incompatibility with other resins limits their use in blends with 

High-methyl silicone High-phenyl silicone 

Curing reactions of silicone resins essentially involve continuation of the condensation reaction used during their preparation. They need a higher temperature of 225 to 250 °C or more for curing. By using an oil-soluble organometallic catalyst such as zinc octoate, the curing temperature can be reduced. 

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