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Flexitallic Sigma 511

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Buy Sigma 511 flange gaskets online today with One Stop Fluid Power. Sigma 511 is a biaxially orientated, high performance sheet sealing material that contains PTFE with silica filler. Sigma 511 is particularly suitable for sealing applications involving strong acids and most chemicals across the whole pH range (0-14), with the exception of molten alkali metals, fluorine gas, hydrogen fluoride.

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