Permatex Ultra Blue RTV 3ozPermatex Ultra Blue RTV Silicone Gasket Maker is a versatile, sensor-safe sealant engineered to meet OEM standards and deliver long-lasting durability. This non-corrosive, low-odor formula is designed for general-purpose automotive use and provides excellent resistance to fluids and vibration. It bonds well to oily surfaces and eliminates the need for traditional gaskets. With a temperature tolerance from -65F to 500F (-54C to 260C) intermittently, it's ideal for a wide range of under-hood applications.Key Features: Meets OEM performance requirements; Sensor-safe and non-corrosive; Safe for oxygen sensors and electronic components; Adheres strongly to oily surfaces; Replaces paper, rubber, cork, and pre-formed gaskets; Withstands temperatures from -65F to 500F (-54C to 260C) intermittently;