| 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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