RTV Coating - One & Two parts silicone coating
High Voltage Insulator Coating is a one-part, room temperature vulcanizing (RTV) polysiloxane (silicone) high solids coating. Hydrophobicity is a key characteristic in Room Temperature Vulcanization of silicone rubber (RTV) coating. It is engineered to provide a highly hydrophobic surface for its entire life, thus limiting leakage current and preventing flashovers due to insulator contamination. The high solids content of the material not only reduces the time required to build the desired film thickness, but also exceeds VOC requirements of most jurisdictions.Main features:
| Property | Value |
| Basic Component | HVIC, RTV Silicone coating containing Alumina Tri Hydrate (ATH) |
| Type | One-Part, RTV |
| Appearance | Paint |
| Specific Gravity(g/cm³) | 1.10 to 1.25 |
| Application Temperature Range | 5℃ to 60℃ |
| Skin Over time at 25 ºC and 50% relative humidity （25 ºC，50%） | 15 minutes |
| Track free time at 25 ºC and 50% relative humidity （25 ºC，50%） | 15 to 45 minutes |
| Percent of Solids by weight | ≥ 70% |
| Dynamic Viscosity, cp (centipoise) | 1000 to 3500 |
| The RTV Silicone Rubber HVIC shall have the following properties as cured at standard conditions (i.e. 25 ºC temperature and 50% relative humidity) after seven (7) days: | |
| Method of Application | Spray/Dip |
| Coating Thickness | 380 micron, minimum |
| Dielectric Strength (ASTM D149) | 350 to 560 V/mil, minimum |
| Volume Resistivity (ASTM D257) | 1x1014 to 37x1014 Ohm.cm |
| Dissipation Factor at 100Hz (ASTM D150)（100HZ） | 0.01 to 0.09 |
| Tracking Wheel Withstand | 1000 hours, minimum |
| Receding Water Contact Angle | >80 degrees, minimum |
| Dry Arc Resistance | 180 to 200 , Track Seconds |
| Tracking & Erosion Resistance (IEC 60587) | Minimum grade 1A 4.5 |
| Loss Tangent | <0.6% |
| Warranty Period | 10years minimum from date of application. No preventive maintenance shall be required during the period. |
| ※ 2 mm, cured 14 d at 23 °C and 50 % RH. ※ These figures are only intended as a guide and should not be used in preparing specifications. | |
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China's senior organic silicone rubber R&D and manufacturer. Provide a 360° full range of high temperature vulcanized silicone rubber solutions for free.
Public security record No: 31011702001752
