SL-318 CARBONSIL ULTRA HI PERFORMANCE SILICONE GASKET MAKER IS AN ANTHRACITE COLOUR UNIVERSAL SEALING COMPOUND MADE OF 100% SILICONE GASKET MAKER. It IS DEVELOPED USING A NEW AND IMPROVED FORMULA FOR HIGH THERMAL STABILITY. IT CURES QUICKLY, REMAINS PERMANENTLY FLEXIBLE, RIGID, AND CAPABLE OF WITHSTANDING HIGH TORQUE, PRESSURE, AND VIBRATION