{"product_id":"duramix-by-seymour-high-dmx1420e","title":"DURAMIX BY SEYMOUR Duramix High-Build Self Leveling Seam Sealer (7 oz.)","description":"\u003cdiv class=\"afx-product\"\u003e\n\u003cp class=\"afx-lead\"\u003eA controlled flow seam sealer designed for horizontal seams requiring a flowable type sealer.\u003c\/p\u003e\n\u003cdiv class=\"afx-ai-description\"\u003e\n\u003cp\u003eThe DURAMIX 1420 High-Build Self Leveling Seam Sealer is a professional-grade two-component adhesive designed for filling and sealing panel joints, seams, and gaps in automotive collision repair. This 7 oz. cartridge system features a convenient 1:1 mix ratio for consistent application without complex measuring or mixing procedures.\u003c\/p\u003e\n\n\u003cp\u003eWith a 20-30 minute work time and 60-minute sandable time, this sealer provides efficient workflow for high-volume shop operations. The formula cures completely in 6-8 hours and is paintable after 60 minutes, allowing same-day completion of repair cycles. Compatible with aluminum, bare metal, OEM finishes, primer, and steel substrates, it bonds effectively across multiple surface types commonly encountered in collision repair work.\u003c\/p\u003e\n\n\u003cp\u003eThe self-leveling properties ensure smooth, professional results that minimize finishing work. Always use appropriate respiratory protection and ensure adequate ventilation when applying this product in enclosed work areas.\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: 20 to 30 min.\u003c\/li\u003e\n\u003cli\u003eHandling Time: 30 to 45 min\u003c\/li\u003e\n\u003cli\u003eSandable Time: 60 min\u003c\/li\u003e\n\u003cli\u003ePaintable Time: 60 min.\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\u003ePrepare substrate by cleaning aluminum, bare metal, steel, OEM finish, or primer surface of contaminants and debris.\u003c\/li\u003e\n\u003cli\u003eMix sealer at 1:1 ratio and use within 20-30 minute work time.\u003c\/li\u003e\n\u003cli\u003eApply sealer to seam areas, allowing self-leveling properties to create smooth finish.\u003c\/li\u003e\n\u003cli\u003eAllow 30-45 minutes handling time before disturbing application.\u003c\/li\u003e\n\u003cli\u003eSand after 60 minutes if surface preparation is needed.\u003c\/li\u003e\n\u003cli\u003eApply primer or topcoat after 60 minutes paintable time.\u003c\/li\u003e\n\u003cli\u003eAllow 6-8 hours for full cure before final finishing operations.\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 1420 Duramix High-Build Self Leveling Seam Sealer (7 oz.)\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart No.\u003c\/th\u003e\n\u003ctd\u003e1420\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\u003e043281010818\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\u003e20-30 minutes\u003c\/dd\u003e\n\u003cdt\u003eHandling Time\u003c\/dt\u003e\n\u003cdd\u003e30-45 minutes\u003c\/dd\u003e\n\u003cdt\u003eSandable Time\u003c\/dt\u003e\n\u003cdd\u003e60 minutes\u003c\/dd\u003e\n\u003cdt\u003ePaintable Time\u003c\/dt\u003e\n\u003cdd\u003e60 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, OEM, primer, steel\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 seam sealer adheres to aluminum, bare metal, OEM finishes, primer, and steel substrates. Clean and prepare surfaces according to standard body shop practices before application.\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eHow long does it take to cure and when can I sand it?\u003c\/h4\u003e\n\u003cp\u003eFull cure time is 6-8 hours. The sealer becomes sandable in 60 minutes, allowing you to proceed with bodywork relatively quickly.\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eWhat's the working time after mixing?\u003c\/h4\u003e\n\u003cp\u003eYou have 20-30 minutes of work time after mixing the 1:1 ratio components. Plan your application accordingly to avoid waste.\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eWhen can I apply primer or paint over this sealer?\u003c\/h4\u003e\n\u003cp\u003eThe sealer is paintable after 60 minutes. This matches the sandable time, so you can sand and apply topcoats in the same timeframe.\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \u003cdiv class=\"faq-pair\"\u003e\n\u003ch4\u003eHow long before I can handle the repaired area?\u003c\/h4\u003e\n\u003cp\u003eAllow 30-45 minutes handling time before moving or manipulating the sealed area to avoid disturbing the cure process.\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-1420-ea-tds_dfb812e5-d5cb-499c-a866-8ac3bac8f950.pdf?v=1776330524\" 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":51599090286913,"sku":"DMX.1420.EA","price":59.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/8959\/5457\/files\/mfrdmx_1430.jpg?v=1781315214","url":"https:\/\/autofxmart.com\/products\/duramix-by-seymour-high-dmx1420e","provider":"AutofxMart","version":"1.0","type":"link"}