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  • Sigma 533

    Sigma® 533 - Standard compression sheet material reinforced with barytes (barium sulphate) filler. Sigma® 533 is the preferred choice for sealing concentrated alkalis and is also compatible with Aqueous Hydrofluoric Acid below 49%. Restricted resistance to concentrated mineral acids. Sigma® 533 is listed in the Chlorine Institute Pamphlet 95.

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