{"product_id":"dow-dowsil-3140-rtv-silicone-conformal-coating-clear-493-g-can-3140-493g-mil-a-46146","title":"Dow DOWSIL 3140 RTV Silicone Conformal Coating Clear 493 g Can - 3140 493G MIL-A-46146","description":"\u003cdiv class=\"product-description\" style=\"line-height:1.6%;\"\u003e\n  \u003cdiv class=\"container\"\u003e\n\n    \u003cdiv class=\"description-content\" id=\"productDescription\" style=\"max-height: 280px; overflow: hidden; transition: max-height 0.6s ease;\"\u003e\n\n      \u003ch3 style=\"margin-bottom:15px;\"\u003eDescription\u003c\/h3\u003e\n      \u003cp\u003eThe \u003cstrong\u003eDOWSIL 3140 RTV Silicone Conformal Coating\u003c\/strong\u003e is a high-performance, one-component, moisture-curing silicone designed to protect sensitive electronic assemblies from moisture, corrosion, and contaminants. Developed by Dow, this solvent-free coating provides a clear, flexible barrier that maintains dielectric strength and long-term reliability in harsh environments.\u003c\/p\u003e\n      \u003cp\u003eEngineered for high-reliability electronics, aerospace, and industrial applications, DOWSIL 3140 cures at room temperature to a resilient rubber film. Its low-stress, non-corrosive formulation makes it suitable for delicate substrates such as PCBs, connectors, and sensors, while its MIL-A-46146 and UL 94 V-1 certifications ensure compliance with rigorous industry standards.\u003c\/p\u003e\n\n      \u003cbr\u003e\n\n      \u003ch4 style=\"margin-bottom:15px;\"\u003eKey Features\u003c\/h4\u003e\n      \u003cp\u003e• \u003cb\u003eOne-Component RTV Silicone:\u003c\/b\u003e Ready-to-use coating with no mixing required.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eTransparent, Solvent-Free Formula:\u003c\/b\u003e Provides residue-free coverage without shrinkage or outgassing.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eExceptional Dielectric Properties:\u003c\/b\u003e Maintains insulation integrity under high humidity or voltage stress.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eHigh Elongation \u0026amp; Flexibility:\u003c\/b\u003e Protects delicate solder joints and components during thermal cycling.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eMeets MIL-A-46146 \u0026amp; UL 94 V-1:\u003c\/b\u003e Compliant with military and UL safety standards.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eCorrosion \u0026amp; Moisture Resistant:\u003c\/b\u003e Seals against humidity, salt spray, and atmospheric contaminants.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eUV-Traceable Coating:\u003c\/b\u003e Simplifies visual inspection for uniform coverage.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eRoom-Temperature Cure:\u003c\/b\u003e Fast, convenient application process with optional heat acceleration.\u003c\/p\u003e\n\n      \u003cbr\u003e\n\n      \u003ch4 style=\"margin-bottom:15px;\"\u003eApplications\u003c\/h4\u003e\n      \u003cp\u003e• \u003cb\u003ePrinted Circuit Boards (PCBs):\u003c\/b\u003e Protective coating for conformal sealing and electrical insulation.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eAerospace \u0026amp; Defense Electronics:\u003c\/b\u003e Shields avionics and mission-critical systems from moisture and vibration.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eMedical Devices \u0026amp; Instrumentation:\u003c\/b\u003e Reliable dielectric barrier for sensors and control units.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eAutomotive Electronics:\u003c\/b\u003e Ensures stability of engine-control and under-hood modules in extreme conditions.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003ePower Supplies \u0026amp; Transformers:\u003c\/b\u003e Enhances performance and prevents corona discharge.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eCleanroom Manufacturing:\u003c\/b\u003e Ideal for assembly environments requiring low contamination and solvent-free materials.\u003c\/p\u003e\n\n      \u003cbr\u003e\n\n      \u003ch4 style=\"margin-bottom:15px;\"\u003eBenefits\u003c\/h4\u003e\n      \u003cp\u003e• \u003cb\u003eEnhanced Durability:\u003c\/b\u003e Long-term environmental protection for sensitive electronic assemblies.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eReduced Processing Time:\u003c\/b\u003e Single-component, self-leveling coating simplifies application.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eHigh Transparency:\u003c\/b\u003e Enables optical inspection without removal.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eReliable Performance Across Temperatures:\u003c\/b\u003e Maintains flexibility from –45 °C to +200 °C.\u003c\/p\u003e\n      \u003cp\u003e• \u003cb\u003eTrusted Brand:\u003c\/b\u003e Backed by Dow’s proven record of silicone innovation and reliability.\u003c\/p\u003e\n\n      \u003cbr\u003e\n\n      \u003ch4 style=\"margin-bottom:15px;\"\u003eProduct Specs\u003c\/h4\u003e\n      \u003ctable class=\"table table-bordered\" style=\"margin-top:10px; margin-bottom:25px; border-collapse: collapse; width:100%;\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eBrand\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003eDOWSIL\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eColor\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003eClear\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eComponents\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e1 part\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eCure System\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003eRTV\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eCure Time\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e24 to 72 hours at room temperature\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eDielectric Strength\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e450 V\/mil\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eElongation\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e420%\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eFlash Point\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u0026gt;101.1 °C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eHardness\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e34 A\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eSpecific Gravity\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e1.05 @ 25 °C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eTack-Free Time\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e105 min\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eTensile Strength\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e495 psi\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eViscosity\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e30,000\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e\u003cb\u003eVolume Resistivity\u003c\/b\u003e\u003c\/td\u003e\n            \u003ctd style=\"border:1px solid #ccc; padding:8px;\"\u003e2.1 × 10¹⁴ ohm-cm\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n      \u003cbr\u003e\n\n      \u003ch4 style=\"margin-bottom:15px;\"\u003eCategories\u003c\/h4\u003e\n      \u003cp\u003e• DOWSIL Silicone Coatings\u003c\/p\u003e\n      \u003cp\u003e• Conformal Coatings \u0026amp; Sealants\u003c\/p\u003e\n      \u003cp\u003e• Electronics Protection Materials\u003c\/p\u003e\n      \u003cp\u003e• Industrial \u0026amp; Aerospace Adhesives\u003c\/p\u003e\n      \u003cp\u003e• Cleanroom Assembly Products\u003c\/p\u003e\n\n    \u003c\/div\u003e\n\n    \u003cbutton id=\"toggleButton\" style=\"background:none; border:none; color:#007bff; cursor:pointer; font-weight:600; font-size:16px; margin-top:10px;\"\u003e\n      Show More +\n    \u003c\/button\u003e\n\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n  const button = document.getElementById(\"toggleButton\");\n  const content = document.getElementById(\"productDescription\");\n  let expanded = false;\n\n  button.addEventListener(\"click\", function() {\n    if (!expanded) {\n      content.style.maxHeight = content.scrollHeight + \"px\";\n      button.innerHTML = \"Show Less -\";\n    } else {\n      content.style.maxHeight = \"280px\";\n      button.innerHTML = \"Show More +\";\n    }\n    expanded = !expanded;\n  });\n\u003c\/script\u003e\n","brand":"Dow","offers":[{"title":"Default Title","offer_id":43298200649897,"sku":"3140 493G MIL-A-46146","price":228.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5452\/9953\/files\/dow-conformal-coating-silicone-conformal-coating-3140-493g-mil-a-46146.jpg?v=1729271447","url":"https:\/\/labproinc.myshopify.com\/products\/dow-dowsil-3140-rtv-silicone-conformal-coating-clear-493-g-can-3140-493g-mil-a-46146","provider":"Lab Pro Inc","version":"1.0","type":"link"}