<p>Heat curing, dense paste impregnated with metal and ceramic fibers. Excellent travel. Low injection pressure. Below 550ºF (288ºC), speed up the cure by adding 103-P Accelerator (always use accelerator when sealing boiler feed water). Shelf life is 6 months in closed container. Refrigerated storage recommended. </p><h2>Applications</h2><p>High pressure boiler feed water, Steam, Condensate, Hydrocarbons. Designed for bridging large gaps or voids such as uneven flange faces. Can be used for killing or plugging valves or lines no longer in use (not for use as a valve packing).</p>