Ultra-high voltage (UHV) transmission is critical for long-distance power delivery, demanding exceptional insulation and sealing performance. Fluorosilicone rubber series, with excellent electrical insulation, weather resistance, and tracking resistance, are becoming key materials for ensuring long-term reliability of power equipment.

Transformer-specific fluorosilicone rubber is used for bushing seals and on-load tap-changers, effectively suppressing partial discharge and extending equipment life. Fluorosilicone sealants and addition-cure liquid fluorosilicone seal GIS busbar flanges and insulator interfaces, preventing SF₆ leakage and moisture ingress. Low-compression-set fluorosilicone rubber maintains stable clamping force for decades, significantly reducing maintenance costs.

In cable accessories, fluorosilicone potting compounds offer high dielectric strength and stress relief for joint safety. Methyl phenyl vinyl silicone rubber sheaths remain flexible at -50°C, ideal for cold regions. Phenyl silicone rubber elastic mastic provides flexible filling for composite insulators.

Additionally, damping components made from fluorosilicone millable gum provide vibration protection and insulation for converter valves, while fluorosilicone oils serve as insulating coolants in high-voltage switches and terminations.

As UHV projects expand into extreme environments, fluorosilicone materials continue advancing toward higher purity and functionality, supporting the global energy interconnection.