{"product_id":"permatex-fine-grade-engine-valve-grinding-lapping-paste-100g","title":"Permatex Fine Grade Engine Valve Grinding \u0026 Lapping Paste (100g)","description":"\u003cp\u003e\u003cb\u003eAchieve a precise, gas-tight cylinder head seal with professional-grade silicon carbide abrasive paste.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUsed and trusted by Bourne HPP in our own high-performance engine builds, Permatex Fine Grade Engine Valve Grinding Paste (100g) is engineered specifically for precision valve seating, removing carbon deposits, and restoring critical mating surfaces.\u003c\/p\u003e\n\u003cp\u003eFeaturing a specialised 180-grit silicon carbide formula suspended in a water-based compound, it delivers exceptional cutting control while leaving a uniform, burr-free finish to protect your engine's compression and horsepower.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eTested \u0026amp; Used by Bourne HPP:\u003c\/b\u003e We rely on this exact compound in our own workshop for high-output engine prep and cylinder head servicing.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e180 Grit Silicon Carbide (70 Microns):\u003c\/b\u003e High-grade silicon carbide abrasive ideal for precision grinding and seating engine valves to achieve optimal gas-tight sealing without over-grinding.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWater-Based Formula:\u003c\/b\u003e Easy to apply and effortless to clean up. Rinses away completely with water to prevent abrasive particles from contaminating your valve guides.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIntegrated Corrosion Inhibitors:\u003c\/b\u003e Formulated with active corrosion inhibitors that prevent oxidation on valves and valve seats during and after the lapping process.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100.036%; height: 137.083px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003e12063\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003ePermatex\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003eContainer Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003e100g (3.5 oz) Tube\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003eGrit Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003e180 Grit Silicon Carbide (70 Microns)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003eBase\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003eWater-mixable\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 48.2911%;\"\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%;\"\u003e\u003cspan\u003eEngine Valve Seating, Cylinder Head Servicing, Metal Surface Lapping\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 48.2911%; height: 19.5833px;\"\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 49.2492%; height: 19.5833px;\"\u003e\u003cspan\u003eBrand New\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eHow to Lap Engine Valves \u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrep the Surface:\u003c\/b\u003e Thoroughly clean the valve stem, valve guide, and seat area to remove grease and debris.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eApply the Paste:\u003c\/b\u003e Dab a thin, light layer of Permatex Fine Paste around the valve face.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLap the Valve:\u003c\/b\u003e Insert the valve into its guide. Using a suction lapping tool, rotate the valve back and forth against the seat using light, steady pressure. Lift the valve occasionally to redistribute the paste.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInspect the Seat:\u003c\/b\u003e Wipe both the valve face and seat clean with a damp cloth. Look for an unbroken, uniform, dull-grey ring across both mating surfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eClean Thoroughly:\u003c\/b\u003e Wash all components thoroughly with hot water or degreaser before final assembly. Ensure all abrasive residue is completely removed from valve guides and surrounding engine parts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bourne HPP LTD","offers":[{"title":"Default Title","offer_id":57344367001975,"sku":null,"price":7.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/5592\/4087\/files\/permatex-fine-grade-engine-valve-grinding-polish-lapping-paste-100g.png?v=1785489623","url":"https:\/\/bournehpp.com\/products\/permatex-fine-grade-engine-valve-grinding-lapping-paste-100g","provider":"Bourne HPP LTD","version":"1.0","type":"link"}