Momentive TSK551 is a grease-like silicone compound which is designed for application mainly to outdoor electrical insulators. The compound serves to protect the insulators against insulation deterioration due to deposits of dust, salt particles or other types of contaminant carried in the air. Surfaces coated with TSK551 will repel water and resist corona.
Depending on the location and cleanliness of the air, electrical insulators, particularly those exposed to weather are liable to become dirty with dust, smoke or salt particles and unless this surfaces is cleaned periodically, this insulating ability decreases progressively to result ultimately in insulation breakdown.
Salt or dust particles deposited on the insulator surfaces coated with TSK551 become embedded in and enveloped by the silicone coating, so that the surface is always clean and remain water-repellent. The effectiveness of the silicone coating persists for a long period of time ranging from half a year to three years. No attention is required for the coating once made until its service life nears the end.
KEY FEATURES:
♦ Excellent dielectric properties, especially in arc resistance
♦ Wide operating temperature range: -50 to 200°C
♦ Excellent water repellency
APPLICATIONS:
♦ Prevention of salt and dust contamination of insulator
♦ Electrical insulation of connectors
♦ Prevents corona discharge
♦ Moisture proof sealing of electrical contact
For more details on Momentive TSE551, please refer to the datasheet.