Reinforced gasket material compounds like armor-clad, graphite and galvanized steel constructed for sealing irregular surfaces. Mitsubishi 4B11T .044" MLX Cometic Cylinder Head Gasket, 88mm Bore  is a high-performance metal reinforced gasket material that is designed for sealing irregular surface flanges in high heat applications. It features a steel layer on one side with a graphite layer on the other and a fiber layer between. 649C (1200F).
 
HTS Fiber features a graphite/fiber blend mechanically bonded to a perforated stainless steel core. The facing material features 75% graphite with Kevlar fiber reinforcements for strength and durability. Short duration max temp 760C (1400F). Tanged and galvanized steel core. An asbestos-free soft material compound containing aramid fibers, inorganic fillers, and high-grade binder elastomers is applied to both sides of the core.
 
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