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insulator coating
Busbar Insulation Coating
The silicone rubber insulation coating is made from special silicone rubber, high-performance material and other polymers by polymer blending technology. Its basic structural unit is silicon - oxygen chain while its side chain is connected by silicone with another organic radical group. Therefore, this structure makes the coating well combine the properties of both organic and inorganic compound. This product can used for the equipment and components which need protection of insulation, thermos conduction, fire retardant, dampness-proof, etc., such as bare wire, busbar, cable, high-power generator, dry-type reactor, dry-type transformer, switch cabinet and so on, it's quite suitable for the electrical equipment which operated in contaminated and humid environments.

Product Standard of Busbar Insulation Coating:


DL/T 627-2012 Room Temperature Vulcanized Silicone Rubber Anti-Pollution Coating for Insulators
IEEE 1523 IEEE Guide for Application, Maintenance, and Evaluation of Room Temperature Vulcanized (RTV) Silicone Rubber Coatings for Outdoor Ceramic Insulators

Contact us get more details about RTV-II Silicone Rubber Coating, such as TDS, Application Method, OEM etc.
  • Product Features of Busbar Insulation Coating:

    1. Made of special organic silicone rubber and other polymer and high performance.
    2. Safe of electric equipment so important for power system.
    3. Breakdown of electric equipment will bring huge loss to power system and entire national production.
    4. Our silicone rubber insulation coating protects power system from breakdown like bombing.
    5. Applied to equipment or elements need insulating handling, heat-conduction, flame resistant and moisture-proof protection like bare wire, naked bus, electric cable, wall crossing pipeline in high-low pressure substation and distribution system, HP motor, dry reactor, dry transformer and switch cabinet.
    6. Especially suitable for electric equipment working in dirt and humid environment.
    7. Excellent insulating property: Breakdown field strength of coating is over 20kv/mm.
    8. Can effectively stop general short trouble caused by small animal in transformer substation and person injury accident because of nude electric.
    9. Non-flammable, self-extinguishing, nice flame retardant with FV-0 class.
    10. Excellent heat-conducting: Heat conductivity 0.202W/ (m. K) 10 times of air, so it can release equipment's heat in time to prevent excess temperature.
    11. High strength, strong adhesion and high corrosion tolerate.
    12. Ozone, UV and environment aging-resistant.
    13. Not be easy break down by ozone and UV radiation.
    14. Service Life is at least 20 years in nature environment.
  • Product Standard of Busbar Insulation Coating:

    DL/T 627-2012 Room Temperature Vulcanized Silicone Rubber Anti-Pollution Coating for Insulators
    IEEE 1523 IEEE Guide for Application, Maintenance, and Evaluation of Room Temperature Vulcanized (RTV) Silicone Rubber Coatings for Outdoor Ceramic Insulators

    Contact us get more details about RTV-II Silicone Rubber Coating, such as TDS, Application Method, OEM etc.
Item Silicone Rubber Insulation Coating Heat Shrink Tube
Electrical Insulation Excellent electrical insulation. Breakdown Voltage is more than 25 kV/mm. Common performance.
Cover Effect Excellent adhesion.
The coating layer is intense, it could strongly stick to the equipment surface and could well resist to the corrosion caused by acid, alkali, salt and air.
Common cover effect especially in the connection part.
Thermal Conductivity The coating has closely attached to the conductor and has good thermal conductivity could better release the heat of equipment. Its thermal conductivity is 0.2W/ (m. k), which is ten times then air. Relatively poor due to there is air gap between the tube and equipment.
Flame Retardant Hard to burn and has good fire retarding ability up to FV-0 Class. Easy to deform, crack and broke.
Application Favorable hardness makes its construction time is short. (less than one working day)
It can well fit and protect the surface of special shaped equipment or components and special connection position so that to make the conductors as one.
Long construction time and need to disassemble the equipment.
It’s easy to crack and broken for the coating on the special shaped equipment or components and the connection or twist place.
Maintenance Easy to maintain and repair. The coating will not affect the dismounting of screw or bolt. Moreover, if recoating, the new coating can have integrated fuse with the old coating tightly. Although it’s also convenient to maintain and repair, but the connection place is easy to peel and broke.
Ageing Resistance Good hydrophobicity and resistance to ageing, dampness, ozone, radiation, UV, etc. make it free of maintenance and can serve for a long time. Its service life could be more than 20 years. Poor ageing resistance, its service time is about 5 years or even less especially in some bad environment the cracking and break phenomenon will happen.
Economic Excellent performance at reasonable cost. Lower cost.

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  • TEL:+86-13806994462
  • EMAIL:iven_zang@126.com
  • ADDRESS:HeAn, District, Industrial Area, Zhangping, Fujian, China, 364400