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SIGMA Chemically resistant.Uniformly strong.Inherently clean.Total integrity for the mostdemanding applications.www.flexitallic.com

FLEXITALLICThe Flexitallic Group is the internationalmarket leader in the manufactureand supply of high quality, high valueindustrial static sealing products.About usAs the developer of the spiral woundgasket in 1912, we have built on thislegacy of innovation with revolutionaryproducts including Thermiculite andSigma , The Flange Rescue Gasket, andmost recently the Change Gasket, setto transform the global sealing industry.We have a global network of AlliedDistributors across 30 countries. Thisensures local demand is met quickly,providing a combination of the highestproduct quality and outstandingcustomer service.Our extensive and varied productoffering includes spiral wound gaskets,RTJ gaskets, Flexpro Kammprofiles,sheet materials, dynamic and staticpackings, pipe support and customrubber products. Drawing upon thegroup’s rich history and present dayvalues of leadership, quality, serviceand technology, we are at the forefrontof developing sealing solutions forindustries around the world.In addition to a wide range of products,we also deliver world-class technicalsupport and Joint Integrity training.Our MissionMaking the world safer and cleanerthrough engineered sealing solutions.

Allied distributorsBased on sales and geographic reach, the Flexitallic Grouphas become the global supplier of industrial gaskets.Innovative Product RangeWe have a rich history of innovation,which has seen us lead the industrywith many new products.Over the years, our products have gaineda reputation for quality, reliability andtechnology that is second to none.Customised Engineering SolutionsOur Application Engineering, ProductionEngineering and R&D teams workclosely together to design, develop andmanufacture bespoke sealing solutions.We have been responsible for a numberof truly revolutionary products, includingThermiculite , Sigma and the FlangeRescue Gasket, which ensure we areable to continually meet the ever morestringent requirements of our customers.Our Commitment to QualityWe place great emphasis onmaintaining international qualitystandards, and are approved to ISO9001: 2015, ISO 14001:2015, ISO 45001,API 6A and API 17D, to ensure we meetthe highest possible standards for allour products and services.We also invest heavily in test andquality assurance equipment tomaintain our reputation for thehighest quality products.Our materials are subjected to a widerange of tests as specified by statutoryregulations and customer requirements.These approvals enable our customersto make informed choices as to thesuitability of a product for each andevery application.Inside IndustryWe pride ourselves on not simply supplyingproducts, but by supporting customers witha detailed knowledge of their industry andapplications, so that products and servicesare tailored to their specific needs.This unique approach means that we focuson providing more than just a product, butalso a complete solution that adds genuinevalue to our clients.Global Distribution. Local SupportOur products are distributed through aglobal network of Allied Distributors.These carefully selected distribution partnersare strategically located within their territoryto deliver the best possible service andproducts to our customers. This approachmeans our products and know-how areavailable to the global industries we service.Flexitallic SafeOver the last century, our aggressiveR&D efforts have helped customersbecome Flexitallic Safe. From the firstSpiral Wound Gasket in 1912 to the everevolving applications for Thermiculite ,our goal is to develop materials thatpush the parameters of heat, pressureand chemical resistance.3.

SIGMA For applications wherechemical resistance isparamount, SIGMA is the only option.Innovative Materials,Engineered SolutionsUtilising a unique manufacturing processexclusive to Flexitallic, SIGMA representsthe latest generation of biaxially orientatedPTFE materials.Utilising a unique manufacturing processexclusive to Flexitallic, we createdSIGMA , an innovatively-engineeredline of biaxially-orientated PTFE gasketmaterials.Specified by more than 500 majorcompanies, SIGMA stands side by sidewith Flexitallic metal gaskets andThermiculite gasket materials to provideyou with the complete and innovativesealing solutions you demand to handleall your sealing applications.Developed for processes rangingfrom cryogenic temperatures to 500oF(260oC), and suitable for sealing virtuallyevery chemical medium across the entirepH range (0-14), SIGMA pairs theoutstanding chemical resistance of PTFEwith enhanced dimensional stability toimprove overall material stress retention.By designing seals that last longer in themost difficult applications, SIGMA helpsproduction processes increase their outputcapabilities.The non-stick properties of the SIGMA range of materials offer excellent removalafter usage to dramatically reduce thedowntime on shutdown.Total IntegrityWhen it comes to applications involvingaggressive chemicals, SIGMA providesenhanced levels of sealing performancewhen compared to conventional materials.In addition, all components in theSIGMA range are FDA compliant.This inherently clean nature makes themideal for use in industries where productcontamination is of concern such as food,pharmaceuticals and electronics.While conventional PTFE-based sealingmaterials have long been the choice forsuperb chemical resistance, they are notideally suited to achieve the maximumreduction of creep in situations whereseal integrity is paramount - a vitalconsideration for stringent long-termemission control.Material Compliance and ApprovalsTUV, BAM, WRAS, FDA, DVGW.For total sealing reliability, inventoryconsolidation and strict long-term emissioncontrol, nothing out-performs SIGMA – The innovation of integrity.4. www.flexitallic.com

SIGMA Innovative materials,engineered solutions.PRESSURE CONTAINMENT AND TEMPERATUREThicknessup to 1/16” (1.5mm)0.08” (2.0mm)1/8” (3.0mm)Max.Temperature500oF (260oC)500oF (260oC)500oF (260oC)Max. Pressurepsig (bar)1235 (85)1160 (80)1088 (75)Note: The pressure/temperature (shown above) cannot be used simultaneously.pH Range0-14Sheet Sizes*MetricUS Standard1.5m x 1.5m60” x 60”SheetThicknesses*MetricUS Standard0.75mm – 3.0m1/32” – 1/8”RecommendedSurface FinishMetricUS Standard3.2 – 6.3 μm125 – 250 μinNote: Other sheet sizes and thicknesses are available on request.SIGMA – DOMAIN OF USE3001.5mm2.0mm3.0mmTemperature (oC)2502001501005000102030405060708090100Pressure (bar)5.

SIGMA PRODUCT RANGEUnparallel sealingperformance SIGMA – the innovation ofintegrity.SIGMA 500 Enhanced compressibilityfor low bolt loads Suitable for use in alkali, acidand chlorine service Improved flexibility overconventional calenderedand graphite sheets Can be used for all concentrationsof sulphuric acid Standard compressibility Can be used for all concentrationsof sulphuric acid WRAS approved for hot and coldpotable water services.SIGMA 511 Strong acids (except hydrofluoric)to general chemicals WRAS approved for hot andcold potable water services Suitable for oxygen & peroxide service.SIGMA 533 Standard compressibility Aqueous hydrofluoric acid below 49% Ideal for sealing food, pharmaceuticaland non-contamination applications Not suited for sealing molten alkalimetals or fluorine gas. Strong alkalis and other generalchemicalsSIGMA 588 Unique cellular structure – lowload sealing for damaged contactsurfaces Layered structure enhancesdimensional stability and assistsinstallation of larger gaskets Layers bonded by direct sintering – noadhesive layer or potential leak paths Suitable for use in both concentrated acidand alkali service Ease of use – Eliminate jacket ‘fold over’associated with large envelope gaskets.SIGMA 6006. www.flexitallic.com High compressibility for ultra-lowbolt loads; plastic and glass linedequipment Universal – minimises inventoryrequirements and eliminates‘mis-application’ Suitable for use across a wide rangeof chemical media; acids, alkalis,halogens and hydrocarbons Easy to cut, handle, install and remove Pigment and filler free – suitable for‘contamination sensitive’ applications.

SIGMA PRODUCT RANGETYPICAL PHYSICAL AND MECHANICAL PROPERTIESUnitStandardSIGMA 500SIGMA 511SIGMA 533SIGMA 588SIGMA 600naBluePinkOff-whiteWhiteWhiteg/cm (ib/ft )ASTM F13151.4 (87)2.2 (137)2.9 (180)1.1 (68)0.8 (50)nanaGlassMicrospheresSilicaBarytesnanaTensile StrengthMPa (psi)ASTM F15214 (2030)15 (2175)15 (2175)10 (1450)8 (1160)Compressibility%ASTM F3635785568Recovery%ASTM F36444443245MPaDIN 529133030282834Colour3DensityFiller SystemoResidual Stress (175 C)Creep Relaxation3%ASTM F38313533 50 50Gas LeakagemL/minDIN 37540.00.00.00.00.0Liquid Leakage(50psi internal pressure)mL/hrATSM F370.71.81.81.51.2GASKET CONSTANTS & DESIGN INFORMATION – ASME / PRVC (Data based on 1/16” (1.5mm) thickness material)UnitStandardSIGMA 500SIGMA 511SIGMA 533SIGMA 588SIGMA 600m FactornaASME1.41.41.41.41.4Y ValueMPa (psi)ASME13 (1885)16 (2320)16 (2320)11 (1595)11 (1595)GbpsiPVRC ROTT4209115317405anaPVRC ROTT0.80GsTpmax 0.36-20.38-30.29-50.27-6psiPVRC ROTT11.5 x 104.9 x 106.5 x 101.1 x 1024 x 10-2naPVRC ROTT1315024750268005025031850MPaEN13555 220 220 220 220tba*oMPaEN13555 220 220 220 220tba*oMPaEN13555 180 220 220 aEN135551634311615Qmin/0.01****MPaEN13555 1015.0 10 10 10Qsmax (RT)Qsmax (175 C)Qsmax (225 C)PQr (60 MPa/175oC)**Draft 9 Test Procedure. *For further information please call the Flexitallic Applications Engineering Dept.**Stiffness: 500kN/mm. ***Leak rate: mg/m2. ****QA: 40 MPa. Additional EN13555 data is available on request. 7.