{"product_id":"sherwin-williams-finish-1-ultimate-overall-clearcoat-fc720-1-gal-with-fh611-fast-hardener-high-solids-fast-cure","title":"SHERWIN WILLIAMS Finish 1 Ultimate Overall Clearcoat FC720 1 GAL with FH611 Fast Hardener — High-Solids, Fast-Cure","description":"\u003cp\u003e\u003cstrong\u003eSHERWIN WILLIAMS Finish 1 Ultimate Overall Clearcoat (FC720) with FH611 Fast Hardener is a high-solids urethane clearcoat system formulated for fast, durable, high-gloss overall repairs and blending.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis two-component clearcoat package pairs FC720 Finish 1 clearcoat with the FH611 Fast Hardener to deliver excellent gloss, depth of image (DOI), and leveling for overall spray jobs or spot repairs. Designed for both air-dry and force-dry environments, it balances shop productivity with refinishing quality so you can achieve consistent results whether blending into adjacent panels or laying down a full clear. The system mixes at a 4:1 ratio and is engineered for smooth flow, easy buffing, and strong crosslinking when used per manufacturer directions.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this clearcoat perform in a busy collision repair shop?\u003c\/h3\u003e\n\n\u003cp\u003eFinish 1 Ultimate Overall Clearcoat with the FH611 Fast Hardener cures quickly to support fast turnaround times while keeping high-gloss control. It is suitable for both overall jobs and strategic blends, helping technicians maintain production schedules without sacrificing finish quality.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigh-solids formulation for fewer coats and improved coverage\u003c\/li\u003e\n  \u003cli\u003eFast hardener option reduces dry time in force-dry cycles\u003c\/li\u003e\n  \u003cli\u003eGood flow and leveling minimize orange peel and reduce sanding\u003c\/li\u003e\n  \u003cli\u003eExcellent buffing properties for rapid final finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat mixing and application details should I follow for reliable results?\u003c\/h3\u003e\n\n\u003cp\u003eMix the clearcoat and hardener at the specified 4:1 ratio by volume. Use appropriate reducers and follow spray equipment guidelines, flash times, and bake schedules recommended by SHERWIN WILLIAMS to ensure proper film development and adhesion.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMix ratio: 4 parts FC720 clearcoat to 1 part FH611 hardener\u003c\/li\u003e\n  \u003cli\u003eUse recommended reducers for temperature and application method\u003c\/li\u003e\n  \u003cli\u003eApply in multiple even coats, allowing proper flash between coats\u003c\/li\u003e\n  \u003cli\u003eForce-dry or air-dry per shop conditions and oven schedules\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this system blend and buff compared with other clears?\u003c\/h3\u003e\n\n\u003cp\u003eThis urethane clearcoat is formulated for smooth blending into adjacent panels and provides a high DOI that polishes to an even gloss. Its leveling characteristics reduce the need for heavy finishing work, and its buffing response delivers a showroom-quality sheen when properly cured.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eExcellent blending for feathered edges and panel transitions\u003c\/li\u003e\n  \u003cli\u003eHigh DOI for deep, reflective finishes after polishing\u003c\/li\u003e\n  \u003cli\u003eBalanced hardness for ease of sanding and safe buffing\u003c\/li\u003e\n  \u003cli\u003eConsistent film build supports uniform final appearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and compatibility points should I consider before use?\u003c\/h3\u003e\n\n\u003cp\u003eAs a two-component urethane product, use appropriate personal protective equipment, adequate ventilation, and follow SHERWIN WILLIAMS safety data sheet instructions. Ensure substrate preparation, primer, and basecoat systems are compatible with a urethane clearcoat to avoid adhesion or appearance issues.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWear respirator, gloves, and eye protection during mixing and spraying\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer flash and cure guidelines to prevent solvent entrapment\u003c\/li\u003e\n  \u003cli\u003eCheck compatibility with primers and basecoats used in the repair\u003c\/li\u003e\n  \u003cli\u003eDispose of mixed material per local hazardous-waste regulations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: SHERWIN WILLIAMS Finish 1 Ultimate Overall Clearcoat FC720 with FH611 Fast Hardener is aimed at professional collision-repair shops, body technicians, and refinishing specialists who need a high-solids urethane clear that blends well, cures quickly, and polishes to a high-gloss finish. It is ideal for shops performing both overall repaints and spot blending where consistent DOI, leveling, and buffing characteristics are required.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the mix ratio for FC720 and FH611?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Mix Finish 1 FC720 clearcoat with FH611 hardener at a 4:1 volume ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this clearcoat for both spot and overall repairs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is formulated for blending into adjacent panels and for full overall applications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SHERWIN WILLIAMS","offers":[{"title":"Default Title","offer_id":48082881052830,"sku":"B01N7VDUY3","price":158.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sherwin-williams-fc720-front-can.jpg?v=1785817779","url":"https:\/\/northtrailauto.ca\/products\/sherwin-williams-finish-1-ultimate-overall-clearcoat-fc720-1-gal-with-fh611-fast-hardener-high-solids-fast-cure","provider":"North Trail Auto","version":"1.0","type":"link"}