{"product_id":"fkm-fluororubber-h-cell-gaskets","title":"FKM Fluororubber H-Cell Gaskets","description":"\u003ch2 id=\"product-oneliner\"\u003eFKM Elastomeric Gaskets for Acidic, Hydrocarbon, and Gas-Tight Electrolyte Environments\u003c\/h2\u003e\n\u003cp class=\"text-center\"\u003eFor a superior re-sealing on H-cell flange under a broad range of demanding environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"text-center\"\u003e\u003ca href=\"#specification\"\u003eSpecifications\u003c\/a\u003e | \u003ca href=\"#gallery\"\u003eGallery\u003c\/a\u003e | \u003ca href=\"#pricing\"\u003ePricing\u003c\/a\u003e | \u003ca href=\"#related-products\"\u003eRelated Products\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eFKM, fluoroelastomer gaskets provide a resilient, elastomeric seal for H-type electrochemical cells operating in acidic, hydrocarbon-exposed, or gas-tight electrolyte environments. Unlike rigid PTFE-based seals, FKM's elastomeric structure provides a stronger compression recovery, maintaining sealing pressure and re-sealing reliably across repeated clamping cycles, making it well suited to applications needing a tight, flexible seal that standard silicone cannot provide.\u003c\/p\u003e\n\u003cp\u003eFKM offers superior resistance to a broad range of chemicals compared to silicone, including strong acids, alkalis, and solvents, since concentrated mineral acids such as sulfuric, hydrochloric, or nitric acid attack silicone's chemical structure over time, while FKM's fluorinated backbone remains stable under the same exposure. This makes FKM the stronger choice for H-cells running electrolytes containing high concentrations of these acids. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFKM also holds up well against hydrocarbons and organic solvents, fuels, aromatic oils, and chlorinated solvents, environments where silicone lacks the same chemical resistance and is more prone to swelling and losing its shape under prolonged exposure. This broadens FKM's suitability beyond aqueous electrolytes into mixed or organic-solvent electrochemical systems. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eA further advantage is gas-tight retention. Silicone has notably high CO₂ permeability, making it poorly suited to gas-tight sealing, whereas fluorinated elastomers like FKM sit at the low-permeability end of the scale. This matters directly for experiments tracking gas-evolution products, such as CO₂ reduction or water electrolysis, where reduced atmospheric crossover improves the accuracy of gas quantification. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant limitation:\u003c\/strong\u003e FKM does not perform well with ketones (acetone, MEK), esters, aliphatic and aromatic amines, or low-molecular-weight organic acids such as concentrated acetic or formic acid, all of which cause rapid swelling and mechanical breakdown of the material. Concentrated strong bases above roughly 10% (NaOH, KOH) are also outside FKM's working range, consistent with published degradation studies in alkaline media.\u003c\/p\u003e\n\u003cp\u003eFor strongly alkaline electrolytes or systems involving these substances, an ePTFE gasket is the more chemically robust choice.\u003c\/p\u003e\n\u003cdiv class=\"row display-flex\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/chemically-inert-icon.svg\"\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eAcid Stability\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eExcellent resistance to strong acids as high con. nitric and sulfuric acid \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/flow-direction-icon.svg\"\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eLow gas permeability\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eSupports accurate gas-evolution tracking\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/reusability-icon.svg\"\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eReusability\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eStrong elastomeric compression recovery supporting repeated use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/ring-gasket-icon.svg\"\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eStandard Size\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eFits standard modular electrochemical dual-chamber setups\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"specification\"\u003eSpecifications\u003c\/h2\u003e\n\u003chr\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth width=\"38.2%\" style=\"width: 56.8592%;\"\u003eProduct Name\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003eFKM Fluororubber H-Cell Gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eSKU\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003eC2055F1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003eFKM Fluororubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eWindow Diameter\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eThickness\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003e1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eColour\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003eNumber of Gaskets in a set\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cfigure\u003e\u003cimg width=\"636\" loading=\"lazy\" height=\"438.75\" alt=\"H-Cell Gaskets Dimension Diagram\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/membrane-gasket-seal-dimensions.svg?\u0026amp;width=636\"\u003e\n\u003cfigcaption\u003eDiagram of the FKM Fluororubber Gasket for H-cells\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 id=\"gallery\"\u003eFKM Fluororubber H-Cell Gasket Gallery\u003c\/h2\u003e\n\u003chr\u003e\n\u003cdiv class=\"carousel-container carousel-gallery\"\u003e\n\u003cdiv class=\"carousel-track ease-in-out-transition\"\u003e\n\u003ca title=\"FKM H-Cell Gaskets\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-membrane-gasket-seal.jpg?width=1024\" class=\"carousel-item\"\u003e \u003cimg width=\"420\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-membrane-gasket-seal.jpg?width=420\u0026amp;height=280\u0026amp;crop=center\" loading=\"lazy\" height=\"280\" alt=\"FKM H-Cell Gaskets\"\u003e \u003c\/a\u003e \u003ca title=\"H-Cell Gasket\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-h-cell-gasket-seal.jpg?width=1024\" class=\"carousel-item\"\u003e \u003cimg width=\"420\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-h-cell-gasket-seal.jpg?width=420\u0026amp;height=280\u0026amp;crop=center\" loading=\"lazy\" height=\"280\" alt=\"H-Cell Gasket\"\u003e \u003c\/a\u003e \u003ca title=\"FKM Fluororubber H-Cell Gaskets\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/h-cell-membrane-gasket-seal.jpg?width=1024\" class=\"carousel-item\"\u003e \u003cimg width=\"420\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/h-cell-membrane-gasket-seal.jpg?width=420\u0026amp;height=280\u0026amp;crop=center\" loading=\"lazy\" height=\"280\" alt=\"FKM Fluororubber H-Cell Gaskets\"\u003e \u003c\/a\u003e \u003ca title=\"FKM Fluororubber Gasket\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-gasket-seal.jpg?width=1024\" class=\"carousel-item\"\u003e \u003cimg width=\"420\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/fluoroelastomer-gasket-seal.jpg?width=420\u0026amp;height=280\u0026amp;crop=center\" loading=\"lazy\" height=\"280\" alt=\"FKM Fluororubber Gasket\"\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003ca class=\"carousel-left-control\" role=\"button\"\u003e \u003csvg class=\"icon icon-chevron-left\"\u003e\u003cuse href=\"#icon-chevron-left\"\u003e\u003c\/use\u003e\u003c\/svg\u003e \u003cspan class=\"sr-only\"\u003ePrevious\u003c\/span\u003e \u003c\/a\u003e \u003ca class=\"carousel-right-control\" role=\"button\"\u003e \u003csvg class=\"icon icon-chevron-right\"\u003e\u003cuse href=\"#icon-chevron-right\"\u003e\u003c\/use\u003e\u003c\/svg\u003e \u003cspan class=\"sr-only\"\u003eNext\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"pricing\"\u003ePricing and Options\u003c\/h2\u003e\n\u003chr\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth width=\"38.2%\"\u003eProduct Name\u003c\/th\u003e\n\u003cth width=\"30.9%\"\u003eProduct Code\u003c\/th\u003e\n\u003cth width=\"30.9%\"\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFKM Fluororubber H-Cell Gaskets\u003c\/td\u003e\n\u003ctd\u003eC2055F1\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ossila-currency-exchange\" data-gbp-price=\"25\" data-nosnippet=\"true\"\u003e£25\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"related-products\"\u003eRelated Products\u003c\/h2\u003e\n\u003chr\u003e\n\u003cdiv class=\"collection-container\"\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/electrochemical-cells\"\u003e\n\u003cdiv class=\"collection-button background-ossila-blue\"\u003e\n\u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/electrochemical-cell-collection-design.png?v=1715167619\" loading=\"lazy\" height=\"109\" alt=\"Electrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectrochemical Cells\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/photoelectrochemical-cells\"\u003e\n\u003cdiv class=\"collection-button background-light-blue\"\u003e\n\u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/Photoelectrochemical-cells-collection-design.png?v=1715167619\" loading=\"lazy\" height=\"109\" alt=\"Photoelectrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003ePhotoelectrochemical\u003cbr\u003eCells\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/electrodes\"\u003e\n\u003cdiv class=\"collection-button background-ossila-blue\"\u003e\n\u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/Electrode-collection-design.png?v=1715167618\" loading=\"lazy\" height=\"109\" alt=\"Electrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectrodes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ossila","offers":[{"title":"Pack of 10","offer_id":52154727923928,"sku":"C2055F1","price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0287\/files\/fkm-membrane-gasket-seals-product-photo.jpg?v=1785767418","url":"https:\/\/www.ossila.com\/products\/fkm-fluororubber-h-cell-gaskets","provider":"Ossila","version":"1.0","type":"link"}