{"product_id":"fenwicks-professional-carbon-assembly-paste-80ml-carbon-seatposts-handlebars-stems","title":"Fenwick's Professional Carbon Assembly Paste 80ml – Carbon Seatposts, Handlebars \u0026 Stems","description":"\u003cp\u003e\u003cstrong\u003eFenwick's Professional Carbon Assembly Paste\u003c\/strong\u003e is an essential product for any workshop or home mechanic working with carbon fibre components. Carbon assembly paste does the opposite of grease or anti-seize: rather than reducing friction, it \u003cstrong\u003eincreases grip between carbon-to-carbon and carbon-to-metal interfaces\u003c\/strong\u003e, allowing components to be secured at the low torque values specified by carbon component manufacturers without slipping. This is critical for carbon seatposts, handlebars, stems, and any other carbon interface where over-tightening to compensate for slippage risks damaging the component.\u003c\/p\u003e\n\n\u003cp\u003eThe paste contains \u003cstrong\u003epliable beads that deform under clamping pressure\u003c\/strong\u003e, creating a micro-textured interface that dramatically increases the friction coefficient between surfaces. This means a carbon seatpost clamped at the manufacturer's specified torque — typically 4–5Nm, far lower than a metal post — will hold securely without creaking or slipping. The \u003cstrong\u003e80ml tube with pinpoint nozzle\u003c\/strong\u003e allows precise, targeted application with minimal waste and no need for additional tools. Apply a thin, even layer to the contact area of the component, assemble, and torque to the manufacturer's specification — do not exceed the specified torque value.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e carbon assembly paste is specifically for carbon interfaces. Do not use it as a substitute for assembly grease on metal components — use the \u003ca href=\"\/products\/fenwicks-assembly-grease-80ml\"\u003eFenwick's Assembly Grease\u003c\/a\u003e for metal-on-metal assemblies. For threaded titanium components, use the \u003ca href=\"\/products\/fenwicks-copper-anti-seize\"\u003eCopper Anti-Seize\u003c\/a\u003e or \u003ca href=\"\/products\/fenwicks-lubrication-ptfe-anti-seize-p114731\"\u003ePTFE Anti-Seize\u003c\/a\u003e. Browse the full \u003ca href=\"\/collections\/fenwicks\"\u003eFenwick's range\u003c\/a\u003e or explore our \u003ca href=\"\/collections\/workshop\"\u003eworkshop and maintenance collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It's Good For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon seatposts in carbon or aluminium frames — prevents slipping at low torque values\u003c\/li\u003e\n\u003cli\u003eCarbon handlebars in carbon or aluminium stems — prevents rotation under load\u003c\/li\u003e\n\u003cli\u003eCarbon stems on carbon or aluminium steerer tubes\u003c\/li\u003e\n\u003cli\u003eAny carbon-to-carbon or carbon-to-metal clamped interface\u003c\/li\u003e\n\u003cli\u003e80ml tube with pinpoint nozzle for precise, mess-free application\u003c\/li\u003e\n\u003cli\u003ePliable beads that deform under pressure for optimised grip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It's NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMetal-to-metal assemblies — use the \u003ca href=\"\/products\/fenwicks-assembly-grease-80ml\"\u003eFenwick's Assembly Grease\u003c\/a\u003e for bearings, headsets, and metal threaded components\u003c\/li\u003e\n\u003cli\u003eTitanium threaded interfaces — use \u003ca href=\"\/products\/fenwicks-copper-anti-seize\"\u003eCopper Anti-Seize\u003c\/a\u003e or \u003ca href=\"\/products\/fenwicks-lubrication-ptfe-anti-seize-p114731\"\u003ePTFE Anti-Seize\u003c\/a\u003e to prevent galling\u003c\/li\u003e\n\u003cli\u003eThreaded carbon components such as carbon bottle cage bolts — these typically require a small amount of thread lock or assembly grease, not carbon paste\u003c\/li\u003e\n\u003cli\u003eUse as a lubricant or waterproofing agent — carbon paste is a grip compound, not a lubricant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do carbon components need a special paste?\u003c\/strong\u003e\u003cbr\u003eCarbon fibre has a naturally low friction coefficient, which means clamped interfaces — such as a seatpost in a frame — can slip at the low torque values specified by manufacturers. Over-tightening to compensate risks cracking or crushing the carbon. Carbon assembly paste increases the grip between surfaces, allowing the component to be secured at the correct low torque without slipping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I apply it correctly?\u003c\/strong\u003e\u003cbr\u003eApply a thin, even layer of paste to the contact area of the component (e.g. the insertion area of a seatpost, or the clamping area of a handlebar). Assemble the component and torque to the manufacturer's specified value — do not exceed it. The paste does the work of holding the component securely; you do not need to over-tighten.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it on a carbon seatpost in an aluminium frame?\u003c\/strong\u003e\u003cbr\u003eYes — Fenwick's Carbon Assembly Paste is suitable for carbon-to-metal interfaces as well as carbon-to-carbon. Apply to the seatpost insertion area and torque the clamp bolt to the frame manufacturer's specified value.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs it the same as assembly grease?\u003c\/strong\u003e\u003cbr\u003eNo — carbon paste and assembly grease do opposite things. Assembly grease reduces friction; carbon paste increases it. Using assembly grease on a carbon seatpost will make slipping more likely, not less. Always use the correct product for the interface: carbon paste for carbon, \u003ca href=\"\/products\/fenwicks-assembly-grease-80ml\"\u003eassembly grease\u003c\/a\u003e for metal.\u003c\/p\u003e","brand":"Fenwick's","offers":[{"title":"Default Title","offer_id":45472134463663,"sku":"FEGCAR8","price":6.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1674472890-34610300.jpg?v=1768519815","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/fenwicks-professional-carbon-assembly-paste-80ml-carbon-seatposts-handlebars-stems","provider":"Swinnerton Cycles","version":"1.0","type":"link"}