{"product_id":"duramix-by-seymour-heavy-bodied-seam-sealer-dmx1390e","title":"DURAMIX BY SEYMOUR Duramix Heavy Bodied Seam Sealer — Gray (7 oz.)","description":"\u003cdiv class=\"afx-product\"\u003e\n\u003cp class=\"afx-lead\"\u003eA high viscosity direct to metal seam sealer designed for sealing horizontal and vertical voids, joints and seams.\u003c\/p\u003e\n\u003cdiv class=\"afx-ai-description\"\u003e\n\u003cp\u003eThe DURAMIX BY SEYMOUR 1390 Heavy Bodied Seam Sealer is a professional-grade, two-component polyurethane seam sealer designed for permanent sealing of joints, seams, and panel connections in collision repair applications. This gray-colored sealer provides excellent adhesion and durability for critical areas requiring long-term moisture and environmental protection.\u003c\/p\u003e\n\n\u003cp\u003eFeatures a convenient 1:1 mix ratio for easy preparation with a 10-15 minute work time, allowing sufficient application window for complex repairs. The sealer reaches handling strength in 30-45 minutes and achieves full cure in 6-8 hours. Compatible with multiple substrates including aluminum, bare metal, e-coat, fiberglass, FRP, OEM finishes, primer, and SMC, making it versatile for various repair scenarios. The heavy-bodied consistency provides excellent gap-filling properties and maintains position during cure without sagging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"afx-heading\"\u003eWhy Pros Choose DURAMIX BY SEYMOUR DMX\u003c\/h2\u003e\n\u003cul class=\"afx-features\"\u003e\n\u003cli\u003eWorking Time: 10 to 15 min.\u003c\/li\u003e\n\u003cli\u003eHandling Time: 30 to 45 min\u003c\/li\u003e\n\u003cli\u003eSandable Time: 45 min\u003c\/li\u003e\n\u003cli\u003ePaintable Time: Immediately\u003c\/li\u003e\n\u003cli\u003eFull Cure Time: 6 to 8 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"afx-heading\"\u003eApplication Guide\u003c\/h2\u003e\n\u003cdiv class=\"afx-ai-application\"\u003e\n\u003col\u003e\n\u003cli\u003eClean substrate thoroughly to remove dirt, grease, and contaminants. Ensure surface is dry before application.\u003c\/li\u003e\n\u003cli\u003eMix components at 1:1 ratio thoroughly until uniform color is achieved. Use mixed material within 10-15 minutes work time.\u003c\/li\u003e\n\u003cli\u003eApply sealer to seam areas using appropriate dispensing equipment, ensuring complete coverage and proper adhesion to substrate.\u003c\/li\u003e\n\u003cli\u003eAllow 30-45 minutes handling time before moving parts or continuing with additional processes.\u003c\/li\u003e\n\u003cli\u003eAllow 6-8 hours for complete cure before sanding, priming, or topcoating.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"afx-heading\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"afx-specs\" cellpadding=\"6\" style=\"border-collapse:collapse;width:100%;max-width:640px\"\u003e\n\u003ccaption class=\"afx-sr-only\" style=\"position:absolute;left:-9999px\"\u003eTechnical specifications for 1390 Duramix Heavy Bodied Seam Sealer — Gray (7 oz.)\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart No.\u003c\/th\u003e\n\u003ctd\u003e1390\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct Line\u003c\/th\u003e\n\u003ctd\u003eDMX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eDURAMIX BY SEYMOUR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e043281010795\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"afx-ai-specs\"\u003e\n\u003cdl\u003e\n\u003cdt\u003eMix Ratio\u003c\/dt\u003e\n\u003cdd\u003e1:1\u003c\/dd\u003e\n\u003cdt\u003eWork Time\u003c\/dt\u003e\n\u003cdd\u003e10-15 minutes\u003c\/dd\u003e\n\u003cdt\u003eHandling Time\u003c\/dt\u003e\n\u003cdd\u003e30-45 minutes\u003c\/dd\u003e\n\u003cdt\u003eCure Time\u003c\/dt\u003e\n\u003cdd\u003e6-8 hours\u003c\/dd\u003e\n\u003cdt\u003eCompatible Substrates\u003c\/dt\u003e\n\u003cdd\u003eAluminum, bare metal, e-coat, fiberglass, FRP, OEM, primer, SMC\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"afx-heading\"\u003eAbout DURAMIX BY SEYMOUR\u003c\/h2\u003e\n\u003cp\u003eDURAMIX BY SEYMOUR is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America.\u003c\/p\u003e\n\u003ch2 class=\"afx-heading\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"afx-ai-faq\"\u003e\n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eWhat surfaces can I use this seam sealer on?\u003c\/h4\u003e\n\u003cp\u003eThis sealer is compatible with aluminum, bare metal, e-coat, fiberglass, FRP, OEM finishes, primer, and SMC substrates.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eHow long does it take to fully cure?\u003c\/h4\u003e\n\u003cp\u003eThe sealer requires 6-8 hours for complete cure after application.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eWhat's the working time after mixing?\u003c\/h4\u003e\n\u003cp\u003eYou have 10-15 minutes of work time once the 1:1 mix ratio components are combined.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eWhen can I handle the sealed area?\u003c\/h4\u003e\n\u003cp\u003eThe sealer can be handled after 30-45 minutes, though full cure takes 6-8 hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"afx-heading\"\u003eDocuments \u0026amp; Safety\u003c\/h2\u003e\n\u003cul class=\"afx-docs\"\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0707\/8959\/5457\/files\/duramix-by-seymour-dmx-1370-ea-tds_d6c9b89a-e587-455d-97cd-d5e02555a901.pdf?v=1776330522\" target=\"_blank\" rel=\"noopener\"\u003eTechnical Data Sheet (TDS)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2 class=\"afx-heading\"\u003eWhy Buy from autofxmart\u003c\/h2\u003e\n\u003cul class=\"afx-trust\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized distributor\u003c\/strong\u003e — authentic, factory-fresh stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast US shipping\u003c\/strong\u003e — most orders ship within 1 business day.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-day returns\u003c\/strong\u003e — buy with confidence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-shop pricing\u003c\/strong\u003e — bulk discounts available on request.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert support\u003c\/strong\u003e — questions? Email us at \u003ca href=\"mailto:support@autofxmart.com\"\u003esupport@autofxmart.com\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"DURAMIX BY SEYMOUR","offers":[{"title":"Default Title","offer_id":51599089697089,"sku":"DMX.1390.EA","price":50.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/8959\/5457\/files\/mfrdmx_1350_b56a8e56-40f9-4883-bcef-c875eabddecf.jpg?v=1781315173","url":"https:\/\/autofxmart.com\/products\/duramix-by-seymour-heavy-bodied-seam-sealer-dmx1390e","provider":"AutofxMart","version":"1.0","type":"link"}