American Granby 81915 7.25 oz Red PERMATEX® #26 High-Temp RTV Silicone Gasket Maker. Formulated for hi-temp applications. Replaces almost any cut gasket by making reliable "formed-in-place" gaskets that resist cracking, shrinking and migrating caused by thermal cycling. Coat pre-cut gaskets to increase reliability. Temperature range -65 to 650 deg F (-54 to 343 deg C) intermittent. Resists auto and shop fluids. First generation gasket maker. Fills gaps to 0.25 Inch when fully cured.