{"product_id":"spark-plug-high-voltage-silicone-grease-ignition-coil-dielectric","title":"Spark Plug High-Voltage Silicone Grease – Ignition Coil Dielectric Compound, High \u0026 Low Temp","description":"\u003ch2\u003eSpark Plug High-Voltage Silicone Grease — Ignition Coil Dielectric Compound\u003c\/h2\u003e\u003cp\u003eMoisture and corrosion at the spark plug boot-to-plug interface cause misfires, hard starts, and premature ignition component failure. A thin application of high-voltage silicone dielectric grease at installation seals the boot against moisture ingress, prevents corona discharge (arcing), and makes future plug removal significantly easier by preventing the rubber boot from bonding to the ceramic insulator.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-voltage silicone dielectric grease\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−50°C to +200°C (continuous service)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh — rated for ignition coil and spark plug boot voltages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemical Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResistant to engine oil, coolant, and fuel splash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApply thin coat to inside of spark plug boot and plug ceramic insulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll petrol\/gasoline engines — car, motorcycle, marine, small engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents moisture ingress:\u003c\/strong\u003e Seals the spark plug boot-to-insulator interface against water, condensation, and road splash — eliminates moisture-induced misfires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents corona discharge:\u003c\/strong\u003e High dielectric strength prevents high-voltage arcing through the boot wall — maintains full ignition energy delivery to the plug gap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents boot bonding:\u003c\/strong\u003e Silicone barrier prevents the rubber boot from vulcanizing to the ceramic insulator over time — makes future plug removal clean and damage-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme temperature stability:\u003c\/strong\u003e Maintains consistency from −50°C cold starts to +200°C sustained engine bay temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion inhibitor:\u003c\/strong\u003e Protects metal terminal contacts inside the boot from oxidation in high-humidity environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Instructions\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eClean the spark plug ceramic insulator and boot interior with a dry cloth\u003c\/li\u003e\n\u003cli\u003eApply a thin, even coat of grease to the inside of the spark plug boot (approximately 0.5 mm thickness)\u003c\/li\u003e\n\u003cli\u003eApply a thin coat to the ceramic insulator of the spark plug\u003c\/li\u003e\n\u003cli\u003eInstall the plug and press the boot firmly onto the plug until it seats fully\u003c\/li\u003e\n\u003cli\u003eDo not apply grease to the plug threads or electrode gap\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Should I apply this grease to the spark plug threads?\u003c\/strong\u003e\u003cbr\u003eA: No. Apply only to the ceramic insulator and inside the boot. Grease on the threads can affect torque readings and may cause the plug to loosen under thermal cycling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this the same as regular silicone grease?\u003c\/strong\u003e\u003cbr\u003eA: No. This is a dielectric (electrically insulating) silicone compound specifically formulated for high-voltage ignition applications. Standard silicone grease may not have sufficient dielectric strength for ignition coil voltages.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use this on ignition coil-on-plug (COP) boots?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This grease is suitable for both traditional spark plug wire boots and modern coil-on-plug (COP) rubber boots.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× High-voltage silicone dielectric grease (quantity\/size as selected)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOne application at installation prevents years of moisture-related ignition problems.\u003c\/em\u003e\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"1pc","offer_id":47854433009909,"sku":"14:193#1pc","price":10.5,"currency_code":"USD","in_stock":true},{"title":"2pcs","offer_id":47854433075445,"sku":"14:29#2pcs","price":16.8,"currency_code":"USD","in_stock":true},{"title":"4pcs","offer_id":47854433042677,"sku":"14:691#4pcs","price":29.4,"currency_code":"USD","in_stock":true},{"title":"10pcs","offer_id":47854433108213,"sku":"14:10#10pcs","price":67.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S8aad6f5768a9461cbaa90989db551a31y.webp?v=1773976672","url":"https:\/\/www.csldmcml.com\/products\/spark-plug-high-voltage-silicone-grease-ignition-coil-dielectric","provider":"Cable Parts Online","version":"1.0","type":"link"}