{"product_id":"permatex-ultra-blue-rtv-silicone-gasket-maker-3-oz-sensor-safe-oem-sealant","title":"Permatex Ultra Blue RTV Silicone Gasket Maker, 3 oz - Sensor-Safe OEM Sealant","description":"\u003cp\u003ePermatex Ultra Blue RTV Silicone Gasket Maker is a versatile, sensor-safe sealant engineered to meet OEM performance requirements while delivering long-lasting durability for general-purpose automotive use. This non-corrosive, low-odor silicone formula is safe for oxygen sensors and other electronic components, making it suitable for use on modern, sensor-equipped engines without risk of contamination or malfunction. It provides excellent resistance to automotive fluids and vibration, and it bonds strongly even to oily surfaces where many sealants fail to adhere.\u003c\/p\u003e\u003cp\u003eUltra Blue is designed to replace paper, rubber, cork, and pre-formed gaskets, eliminating the need to source a pre-cut gasket for many general-purpose sealing jobs. It cures to form a flexible, durable seal that withstands temperatures from -65 degrees F to 500 degrees F (-54 degrees C to 260 degrees C) intermittently, covering a wide range of under-hood applications from valve covers to housings and other bolted joints exposed to heat cycling and vibration.\u003c\/p\u003e\u003cp\u003eThis 3 oz tube is sized for shop or garage use and is intended for general automotive sealing and gasket-making tasks rather than extreme-heat exhaust applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Permatex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e PERM81724\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Ultra Blue RTV Silicone Gasket Maker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume:\u003c\/strong\u003e 3 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -65 degrees F to 500 degrees F (-54 degrees C to 260 degrees C) intermittently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Safe:\u003c\/strong\u003e Yes, safe for oxygen sensors and electronic components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosive:\u003c\/strong\u003e Non-corrosive formula\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdor:\u003c\/strong\u003e Low odor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets OEM Standards:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is Permatex Ultra Blue RTV Silicone Gasket Maker used for?\u003c\/strong\u003e Permatex Ultra Blue RTV Silicone Gasket Maker (PERM81724) is a general-purpose automotive silicone sealant used to form gaskets in place of paper, rubber, cork, or pre-formed gaskets on a wide range of under-hood components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Ultra Blue RTV safe to use near oxygen sensors?\u003c\/strong\u003e Yes, Ultra Blue RTV is a sensor-safe, non-corrosive formula, so it will not damage oxygen sensors or other electronic engine components during use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range can Ultra Blue RTV handle?\u003c\/strong\u003e PERM81724 withstands temperatures from -65 degrees F to 500 degrees F (-54 degrees C to 260 degrees C) intermittently, covering typical under-hood heat cycling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the tube of Ultra Blue RTV weigh?\u003c\/strong\u003e The 3 oz tube of Permatex Ultra Blue RTV Silicone Gasket Maker weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill Ultra Blue RTV bond to oily surfaces?\u003c\/strong\u003e Yes, this formula adheres strongly to oily surfaces, which is useful when a perfectly clean, degreased surface isn't achievable before sealing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Ultra Blue RTV meet OEM specifications?\u003c\/strong\u003e Permatex Ultra Blue RTV Silicone Gasket Maker is engineered to meet OEM performance requirements, making it suitable as a factory-equivalent sealant for general automotive gasket applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan Ultra Blue RTV replace a pre-cut gasket?\u003c\/strong\u003e It can replace paper, rubber, cork, and pre-formed gaskets in general-purpose applications, eliminating the need to source a specific pre-cut gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is Ultra Blue different from Permatex Ultra Black or Ultra Red RTV?\u003c\/strong\u003e Ultra Blue is formulated for general-purpose automotive sealing with a -65 degrees F to 500 degrees F intermittent range, while Permatex's Ultra Black is built for oil-resistant seals on timing covers and oil pans, and Ultra Red is rated for higher-heat exhaust applications up to 650 degrees F. Choose PERM81724 for general under-hood sealing rather than high-heat exhaust or heavy oil-exposure jobs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Ultra Blue RTV resist vibration once cured?\u003c\/strong\u003e Yes, once cured this silicone sealant provides excellent resistance to vibration as well as exposure to automotive fluids.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an authentic Permatex product?\u003c\/strong\u003e Yes, PERM81724 is genuine Permatex Ultra Blue RTV Silicone Gasket Maker, not a generic or off-brand substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size does Ultra Blue RTV Silicone Gasket Maker come in?\u003c\/strong\u003e Permatex Ultra Blue RTV Silicone Gasket Maker (PERM81724) is packaged in a 3 oz tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Ultra Blue RTV low odor?\u003c\/strong\u003e Yes, this is a low-odor formula, making it more comfortable to work with in enclosed shop spaces compared to stronger-smelling sealants.\u003c\/p\u003e","brand":"Permatex","offers":[{"title":"Default Title","offer_id":49028203577563,"sku":"PER-81724","price":8.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/PER-81724__38003.1747363873.500.750.jpg?v=1785165310","url":"https:\/\/www.goodvibesmarina.com\/products\/permatex-ultra-blue-rtv-silicone-gasket-maker-3-oz-sensor-safe-oem-sealant","provider":"Good Vibes Marina","version":"1.0","type":"link"}