（1）Methyl RTV silicone rubber

Methyl RTV silicone rubber is the old variety of general silicone rubber, has the advantages of water resistance, ozone resistance, arc resistance, corona resistance and climate aging resistance. It can be used in a temperature range of 60 ~ 200℃. Therefore, it is widely used as the perfusion and sealing material of electronic and electrical components, and the moisture proof, shock proof, high and low temperature resistance perfusion and sealing material of instruments. Can also be used to manufacture molds for casting polyester resins, epoxy resins and low melting point alloy parts. It can also be used as dental impression material. With methyl RTV silicone rubber coated in cotton cloth, paper bags, can be made for conveying sticky goods conveyor belt and packaging bags.

（2） Methyl diphenyl RTV silicone rubber

Methyl diphenyl RTV silicone rubber in addition to the excellent performance of methyl RTV silicone rubber, than methyl RTV silicone rubber has a wider use temperature range (-100 ~ 250℃). Low phenyl RTV silicone rubber (108-1) with 2.5 ~ 5% phenyl content can keep its elasticity at -120℃, which is the best variety of low temperature performance of silicone rubber at present. Phenyl content in 10 ~ 20% of the room temperature adhesive (108-2) has a good radiation resistance, ablative resistance and self-extinguishing, if a certain amount of heat resistant additives such as Fe2O3, can improve the thermal aging performance, suitable for use in high temperature above 250℃ or do ablative putty coating and sealing materials. Like other room temperature adhesives, methyl phenyl room temperature adhesives can be used for impregnation, impression and film removal. If you would like to increase and the other materials, and must, before using the material to be sticky material surface treatment, surface treatment, complete the following steps: using acetone solvent on the material surface cleaning 1 ~ 2 times, and then use surface treatment agent 1 ~ 2 times, at 60 ℃ baking in the oven for a few minutes, at this point in the material surface to form a few sticky layer of membrane, can the gluing.

（3） methyl block RTV silicone rubber

Methyl block RTV silicone rubber is a modified variety of methyl RTV silicone rubber, it is a copolymer of polydimethylsiloxane (107 rubber) and methyl triethoxysilane oligomer (molecular weight 3 ~ 5) sealed by hydroxyl. Under the catalysis of dibutyl tin laurate 2, hydroxyl groups of poly (dimethyl siloxane and poly (methyl triethoxy silane ethoxy condensation generated three to the structure of polymer, after curing the spring to the body than methyl room temperature vulcanization silicone rubber has high mechanical strength and stick relay, can be in a 70 ~ 200 ℃ temperature range for long-term use.

Methyl block RTV silicone rubber has shockproof, moistureproof, waterproof, breathable, ozone resistance, weathering resistance, weak acid and weak base resistance. It has good electrical insulation, good adhesion, and low cost. Therefore, it can be widely used in potting, coating, impression, demoulding, release of drug carrier and other occasions. Electronic components sealed with methyl block room temperature glue are shockproof, moisture-proof, sealing, insulation, stability of parameters and so on. When the methyl block room temperature glue is directly coated on the loudspeaker, the mid-frequency points of the loudspeaker can be reduced or eliminated, and the resonant frequency performance of the loudspeaker can be reduced about 20 Hertz after curing. In methyl block room temperature glue with a certain amount of additives can be used as paper anti-stick agent. After coating a thin layer of methyl block room temperature glue on the conveyor belt of candy and biscuit in food industry, the anti-viscosity of canvas can be improved, so as to improve the appearance of food and improve the utilization rate of raw materials. Adding appropriate amount of gas phase silica into methyl block room temperature glue can be used to install window glass, curtain wall, window frame, joints of prefabricated boards and expansion joints of airport runway. In addition, it can also be used as adhesive of magnetic cores and templates in electronic computer memory, as well as adhesive of conductive silicone rubber and non-conductive silicone rubber. The fabric treated with methyl block RTV silicone rubber can improve the feel, softness and flexure resistance of the fabric.

（4） RTV silicone rubber
Room temperature vulcanized silicone rubber is beta - ethyl methyl siloxane acrylic, silicone rubber RTV guess besides silicone rubber light resistance, ozone resistance, resistant to moisture, resistant to high and low gentle good electrical insulating properties, main characteristic is resistant to nonpolar solvents such as aliphatic and aromatic solvent resistance performance is good, the oil resistant performance and ordinary oil resistant NBR close, It can be used as sealing filling for oil-polluted parts and oil-resistant electronic components.

（5） RTV fluorosilicone rubber

RTV fluorosilicone rubber is poly γ -trifluoropropyl methyl siloxane, its main characteristics are fuel oil resistance, solvent resistance and high temperature degradation resistance, but also has good extrusion performance. It is mainly used for sealing and caulking of supersonic aircraft integral fuel tank, fluorine silicone rubber gasket and gasket bonding and fixing; Silicone rubber and fluorosilicone rubber bonding, and chemical engineering and general industrial fuel oil; Bonding of solvent resistant parts.

（6） RTV phenylene silicone rubber

RTV benzene-silicone rubber is a polymer of siloxane (biphenyl). Its outstanding advantage is that it has excellent resistance to high-energy rays. It is proved that the rubber can still keep its elasticity after being irradiated by 1x109 roentgen γ -ray or 1xL018 neutron/cm 2, which is 10 ~ 15 times larger than RTV methyl silicone rubber and 5 ~ 10 times larger than RTV phenyl silicone rubber. RTV silicone rubber can be used in atomic energy industry, nuclear power plant and space flight as high temperature resistance, radiation resistance of the bonding sealing material and motor insulation protection layer