ESRON BLUE High Temperature RTV Silicone gasket maker is designed to meet OEM specification. A single component, that cures to a flexble silicone rubber on exposure to atmospheric moisture at room temperature. Makes reliable formed-in-place gasket thats resist cracking, shrinking and migrating caused by thermal cycling. Permanently stable and flexible at temperature range from -65°F to 500°F (-54°C to 260°C) intermittent.