Silicone resin is different from silicone oil and silicone rubber, the glass transition temperature (Tg) & GT of cured silicone resin; 200℃, while typical silicon rubber Tg< 60 ℃. Methyl silicone resin carbon content is the lowest, it has a very high heat resistance, silicon atoms connected methyl group space steric resistance is the least, resin crosslinking degree is high, hardness, small thermoplastic, as waterproof, moisture-proof adhesive is very ideal. But pure methyl silicone resin and pigment compatibility, such as poor, small thermal elasticity, in the introduction of phenyl in polysiloxane can improve the product of thermal elasticity and pigment mismissibility, as well as the bonding of various substances, but also can improve its thermal stability. The performance of methyl phenyl silicone resin, mainly depends on two factors: one is the above mentioned R/Si, in addition to the ratio of methyl and phenyl (CH3/C6H5) is closely related.