{"product_id":"mirka-polarshine-45-1-liter-coarse-polishing-compound-for-gel-coat-and-hard-surfaces-pc45-1l","title":"Mirka Polarshine 45 1 Liter Coarse Polishing Compound for Gel Coat and Hard Surfaces (PC45-1L)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/grit-range.svg\" alt=\"grit-range\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eFast Heavy Cut\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThis Mirka polishing compound is built for aggressive correction. It removes sanding scratches from P600 and finer quickly, which helps cut down polishing time on weathered or heavily marked surfaces.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eRestores Gloss\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eUse it to bring back color and shine without stepping straight into a long sanding process. It is especially useful when the goal is strong cut plus a deep gloss finish in fewer steps.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eClean Formula\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe water-based, silicone-free formula is practical for production and restoration work where cleanup matters and surface prep needs to stay predictable before the next finishing step.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003e\u003cstrong\u003eMirka POLARSHINE 45 Polishing Compound 1L\u003c\/strong\u003e is a coarse polishing compound for fast defect removal and gloss restoration on hard surface coatings. This is a polishing compound designed for removing sanding scratches, heavy oxidation, and restoring shine on gel coat and other coated hard surfaces. Model Number: \u003cstrong\u003ePC45-1L\u003c\/strong\u003e. If you need a compound that cuts fast but still leaves a strong finish, this is the kind of product that earns its spot on the cart.\u003c\/p\u003e\n    \u003cp\u003eThe main reason pros reach for POLARSHINE 45 is speed. According to the source data, it removes sanding scratches from \u003cstrong\u003eP600 and finer\u003c\/strong\u003e quickly and permanently. That matters when you are correcting neglected gel coat, production surfaces, or other hard finishes and do not want to waste time with a weak first-step compound that drags the whole polishing process out.\u003c\/p\u003e\n    \u003cp\u003eThis compound is also positioned as a time-saver because it combines a coarse cut with the ability to produce a \u003cstrong\u003edeep gloss finish\u003c\/strong\u003e. In practical terms, that means you can correct serious surface defects while still moving toward a finish that looks finished, not just cleaned up enough for the next guy. On white and light-colored gel coat surfaces, the source data specifically calls it out as a strong \u003cstrong\u003eone-step polishing\u003c\/strong\u003e option.\u003c\/p\u003e\n    \u003cp\u003eFor restoration work, that balance is important. Heavy oxidation and faded surfaces often need more than a light polish, but aggressive correction products can leave the finish looking hazy if they are all cut and no control. Mirka POLARSHINE 45 is built to handle that first hard push while still restoring color and shine. That makes it a good fit for users who need real correction, not just surface-level gloss.\u003c\/p\u003e\n    \u003cp\u003eThe formula is \u003cstrong\u003ewater-based and silicone-free\u003c\/strong\u003e, which is worth calling out because it affects both workflow and finish prep. Water-based compounds are generally easier to clean up, and a silicone-free formula is the safer choice when you do not want residue complicating later finishing or inspection. That makes this a practical pick for both production environments and restoration shops that care about repeatable results.\u003c\/p\u003e\n    \u003cp\u003eMirka also targets this product toward \u003cstrong\u003ehard surfaces and coatings\u003c\/strong\u003e, with special mention of the \u003cstrong\u003emarine sector\u003c\/strong\u003e. That lines up with jobs like restoring oxidized gel coat, correcting sanding marks after repair work, and bringing gloss back to weathered surfaces. Supplementary data also points to use on automotive paints and composites, which makes sense for users who already understand how to match pad, pressure, and follow-up polish to the material in front of them.\u003c\/p\u003e\n    \u003cp\u003eOne detail worth knowing before you buy: the source data notes that for \u003cstrong\u003edarker colors\u003c\/strong\u003e, a \u003cstrong\u003esecond step with Mirka POLARSHINE 10\u003c\/strong\u003e is recommended to remove swirl marks. That is not a knock on the product. It is just the honest reality of a coarse compound. If your work is mostly white and light-colored gel coat, this can simplify your process. If you work on darker finishes, plan your polishing system accordingly.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it? This is a smart choice for marine detailers, repair shops, restoration pros, body shops, and serious DIY users dealing with oxidation, sanding scratches, and dull coated surfaces. If you need a fast-cutting polishing compound that can move from correction toward finish quality without a lot of wasted motion, Mirka POLARSHINE 45 Polishing Compound 1L is aimed right at that job.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCut Defects Without Dragging Out the Job\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/20260624545_1.jpg\" alt=\"Mirka POLARSHINE 45 Polishing Compound 1L bottle for gel coat and hard surface polishing in marine and restoration work\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eWhen a surface has real oxidation or visible sanding marks, a mild polish just wastes time. This compound is built to cut fast, so you can get to a corrected surface sooner and move on to refinement only when the finish actually needs it.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eRemoves sanding scratches from P600 and finer\u003c\/li\u003e\n          \u003cli\u003eDesigned for heavy oxidation removal and gloss restoration\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt for Production and Restoration Workflows\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/20260624545_4.jpg\" alt=\"Mirka POLARSHINE 45 Polishing Compound 1L container for shop use on coated hard surfaces and gel coat restoration\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eSome compounds cut well but create extra cleanup or finishing headaches. The water-based, silicone-free formula makes more sense in real shops where surface prep, consistency, and efficient cleanup all matter.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eWater-based formula for easier cleanup\u003c\/li\u003e\n          \u003cli\u003eSilicone-free for more predictable finishing and inspection work\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tnincluded-wrapper\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e(1) Mirka POLARSHINE 45 Polishing Compound 1L bottle\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003ctable class=\"aplusspecs\"\u003e\n      \u003ctr\u003e\n        \u003cth\u003eType\u003c\/th\u003e\n        \u003ctd\u003eCoarse polishing compound\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eContainer Size\u003c\/th\u003e\n        \u003ctd\u003e1 L\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eScratch Removal Range\u003c\/th\u003e\n        \u003ctd\u003eP600 and finer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eFormula\u003c\/th\u003e\n        \u003ctd\u003eWater-based, silicone-free\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCompatible Materials\u003c\/th\u003e\n        \u003ctd\u003eHard surfaces and coatings\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWeight\u003c\/th\u003e\n        \u003ctd\u003e3.053 lbs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eMade In\u003c\/th\u003e\n        \u003ctd\u003eFinland\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eUPC\u003c\/th\u003e\n        \u003ctd\u003e842028112613\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eMarine\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eBoat Detailing\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGel Coat Restoration\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eAutomotive Finishing\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eComposite Surface Correction\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eProduction Polishing\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRestoration Work\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eHard Surface Finishing\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tip-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"icon-lg\"\u003e\n      \u003cp class=\"tip-text\"\u003eIf you are correcting white or light-colored gel coat, Mirka POLARSHINE 45 can often handle the cut and finish in one polishing step. On darker finishes, plan on a follow-up pass with Mirka POLARSHINE 10 if you want to clean up swirl marks and sharpen the final gloss.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003eMirka POLARSHINE 45 Polishing Compound 1L is for surfaces that need real correction, not a light touch-up\u003c\/h3\u003e\n    \u003cp\u003eThis is the kind of compound you buy when oxidation, sanding marks, and dull finish need to be dealt with fast.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Marine detailers, restoration shops, body shops, and serious users polishing gel coat, composites, and coated hard surfaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e It combines aggressive cut with a deep gloss finish, and the P600-and-finer scratch removal range tells you it is built for actual defect correction.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e It is especially strong as a one-step option on white and light-colored gel coat. For darker colors, expect to follow with a finer polish if you want the cleanest final finish.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat level of sanding scratches can this compound remove?\u003c\/strong\u003e Source data states that Mirka POLARSHINE 45 removes sanding scratches from P600 and finer.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this a water-based product?\u003c\/strong\u003e Yes. It is described as water-based and silicone-free.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat surfaces is it intended for?\u003c\/strong\u003e It is intended for hard surfaces and coatings, with specific emphasis on marine-sector use and gel coat polishing.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCan it be used as a one-step polish?\u003c\/strong\u003e Yes, especially on white and light-colored gel coat surfaces. For darker colors, the source data recommends a second step with Mirka POLARSHINE 10 to remove swirl marks.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Mirka","offers":[{"title":"Default Title","offer_id":53385945710886,"sku":"PC45-1L","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260624545_1.jpg?v=1782171981","url":"https:\/\/www.toolnut.com\/products\/mirka-polarshine-45-1-liter-coarse-polishing-compound-for-gel-coat-and-hard-surfaces-pc45-1l","provider":"Tool Nut","version":"1.0","type":"link"}