Sigma 600 - Flexitallic - #1

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F L E X I T A L L I C L I M I T E D PO BOX 3, MARSH WORKS, DEWSBURY ROAD CLECKHEATON, WEST YORKSHIRE BD19 5BT TEL: 01274 851273 FAX: 01274 851386 PRODUCT REFERENCE: FLEXITALLIC SIGMA 600 DESCRIPTION: SIGMA 600 is a high performance biaxially orientated PTFE sheet sealing material with controlled porosity. COLOUR: White SERVICE: Sigma 600 is specifically designed for use in flanges where only low bolt loading is available. Such flanges can be glass lined, ceramic, plastic or be so distorted that they include areas of low gasket stress. Suitable for sealing all chemicals across the whole pH range (0-14) with the exception of molten alkali metals and fluorine gas. Consisting entirely of pure PTFE, this material is suitable for use with hydrogen fluoride. Maximum recommended temperature: 260OC (500OF) Maximum recommended pressure: 8.5 MPa (85 bar; 1235 psi) These temperature and pressure guides cannot necessarily be used simultaneously and may not apply at all thicknesses. Complies with the requirements of FDA regulations. Do NOT use gasket pastes. TYPICAL PHYSICAL PROPERTIES: Thickness mm 1.50 3.00 6.00 Density gcm-3 0.76 0.74 0.75 ASTM Compressibility % 68.0 60.1 31.0 ASTM Recovery % 5.1 10.4 21.5 ASTM Tensile Strength MPa 6.7 7.1 6.5 DIN Residual Stress @ 175OC MPa 33.9 18.6 16.3 DIN Gas Permeability mL/min 0.01 0.01 0.02 ASTM Liquid Leakage; Fuel A 50 psi mL/hr 2.0 3.8 6.5 AVAILABILITY: Sheet size: 1.5 m x 1.5 m Thickness range: 0.75 mm to 6.35 mm PDS430 07/07 This Data Sheet refers to the material as supplied. The information contained herein is given in good faith, but no liability will be accepted by the Company in relation to same. We reserve the right to change the details given on this Data Sheet as additional information is acquired. Customers requiring the latest version of this Data Sheet should contact our Applications Engineering Department. The information given and, in particular, any parameters, should be used for guidance purposes only. The Company does not give any warranty that the product will be suitable for the use intended by the customer FLEXITALLIC SIGMA 600