{"product_id":"sem-39777-high-build-2k-self-leveling-seam-sealer-gray-7-oz-cartridge-automotive","title":"SEM 39777 High Build 2K Self Leveling Seam Sealer GRAY 7 oz Cartridge Automotive","description":"\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e SEM\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e No Warranty\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUnit Type:\u003c\/strong\u003e oz\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 39777\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUnit Quantity:\u003c\/strong\u003e 1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Prop 65 Warning:\u003c\/strong\u003e WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\n\u003ch3 dir=\"auto\" style=\"caret-color: rgb(0, 0, 0); text-align: start;\"\u003eSEM 39777 Dual-Mix High-Build Self Leveling Seam Sealer - 7 oz Cartridge\u003c\/h3\u003e\n\u003ch3 dir=\"auto\" style=\"caret-color: rgb(0, 0, 0); text-align: start;\"\u003e\u003c\/h3\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003eBrand New, Genuine SEM Products - Perfect for Automotive Restoration and Repairs!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003eDiscover the ultimate solution for sealing seams with SEM 39777 Dual-Mix High-Build Self Leveling Seam Sealer. This premium two-component epoxy is specially formulated for controlled flow, making it ideal for roof seams, drip rails, trunk seams, and other automotive applications. Whether you're restoring a classic car, repairing body panels, or tackling DIY projects, this sealer provides a professional-grade finish that's OEM recommended. It applies directly to bare metal or primed surfaces, self-levels to reduce running, and remains permanently flexible without shrinking, hardening, or cracking. Paintable in just 15 minutes, it's designed for efficiency and durability.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\"\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\" style=\"font-weight: 400;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Mix Forever Warranty:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eBacked by SEM's lifetime guarantee for peace of mind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Recommended:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eTrusted by professionals for factory-like results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect to Metal Application:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eBonds strongly to bare metal on non-flexing areas like roof skins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Paint Time:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eReady for topcoat in only 15 minutes at 70°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Build Formula:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eBuilds up without excessive running, ensuring clean application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanently Flexible:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eMaintains elasticity to handle vibrations and movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Shrinkage or Cracking:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eProvides a long-lasting, watertight seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003e\u003cu\u003eSpecification\u003c\/u\u003e         \u003cu\u003eDetail\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-weight: 400;\"\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv dir=\"auto\" style=\"mask-image: linear-gradient(to right, black 85%, transparent 100%); mask-composite: add;\"\u003e\n\u003cdiv style=\"height: 0px; width: 1px; left: 0px; flex-shrink: 0;\"\u003e\u003c\/div\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e 39777\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eColor: \u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e Gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eContainer Size:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e 7 oz. Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eWorking Time:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e10 minutes @ 70°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eSet Time:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e15 minutes @ 70°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eTop Coat Time:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e15 minutes @ 70°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eFull Cure Time:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e1 hour @ 70°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\" style=\"white-space-collapse: preserve;\"\u003eSuitable Substrates:\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\" style=\"white-space-collapse: preserve;\"\u003e  Bare metal, OEM finish, Epoxy primer, Urethane primer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"height: 0px; width: 1px; right: 0px; flex-shrink: 0;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003eEasy-to-Follow Instructions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003eFollow these simple steps for a flawless application. Always work in a well-ventilated area and wear protective gear like gloves and eye protection. This is a straightforward DIY process that doesn't require advanced tools – just a caulking gun applicator (manual or pneumatic), masking tape, sandpaper, and a heat gun.\u003c\/p\u003e\n\u003col dir=\"auto\" style=\"font-weight: 400;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrepare the Surface:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eEnsure your vehicle or workpiece is at room temperature (around 70°F) for at least an hour and positioned level. Clean the seams or joints thoroughly with a surface cleaner like SEM Solve. For primed surfaces, sand with P400 grit paper or a gray scuff pad. For bare metal, use P80 grit. Blow off dust and wipe clean again.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime if Needed:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eApply directly to cleaned bare metal or primed areas. For flexible zones (e.g., areas that twist), use a two-component urethane or epoxy primer first and let it fully cure before sealing. Avoid acid-based self-etching primers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMix the Sealer:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eInsert the 7 oz. cartridge into your applicator gun. Pry off the cap with a screwdriver. Squeeze out a small amount until both components flow evenly (equalizing the mix). Attach a static mixer tip (available separately, like SEM 70011) and cut the tip to your desired bead size. Test dispense a bead on scrap material to confirm even mixing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply the Sealer:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eUse masking tape to create a dam at the forward end of the seam to control flow. Dispense the sealer into the center of the channel – it will self-level naturally. Immediately use a heat gun on low setting (2-6 inches away) to pop any air bubbles for a smooth finish.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp style=\"font-weight: 400;\"\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003eWhile still wet, clean up any excess with a VOC-compliant solvent. Carefully remove the tape with a razor knife. If needed, trim the dammed end without lifting the sealer from the base.\u003c\/p\u003e\n\u003col dir=\"auto\" start=\"5\" style=\"font-weight: 400;\"\u003e\u003cli\u003e\n\u003cstrong\u003eCure and Finish:\u003c\/strong\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eAllow 15 minutes to set before painting. Full cure takes about 1 hour. Sand lightly if required for a seamless look.\u003c\/li\u003e\u003c\/ol\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003e\u003cstrong\u003eSafety Precautions:\u003c\/strong\u003e\nStore in a cool, dry place away from heat or flames. Check local regulations for VOC compliance. Review the full Safety Data Sheet (SDS) for detailed health info – always prioritize safety!\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"font-weight: 400; white-space-collapse: preserve;\"\u003eThis SEM 39777 sealer is a must-have for auto enthusiasts and pros alike. Fast shipping and satisfaction guaranteed. Questions? Message me!\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SEM","offers":[{"title":"Default Title","offer_id":58121000190255,"sku":"39777","price":52.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/5428\/3311\/files\/57_fa295ec1-a0e8-45fc-888f-dd0ca7185609.jpg?v=1782873764","url":"https:\/\/www.autopaintdeals.com\/products\/sem-39777-high-build-2k-self-leveling-seam-sealer-gray-7-oz-cartridge-automotive","provider":"Auto Paint Deals","version":"1.0","type":"link"}