{"product_id":"siafleece-6120-6in-grip-disc-ultra-fine","title":"sia 6120 siafleece 6\" Grip Nonwoven Abrasive Discs, Ultra Fine (Gray)","description":"\u003cp\u003e\u003ca href=\"https:\/\/www.smsdistributors.com\/collections\/sia-abrasives-collection\" title=\"sia abrasives collection\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0118\/2262\/files\/Sia_Abrasives_Logo_compact.jpg\" alt=\"sia abrasives logo\" width=\"151\" height=\"99\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003esia Abrasives 6120 siafleece 6\" Grip Discs – Ultra Fine (Gray)\u003c\/strong\u003e are premium nonwoven finishing discs engineered for ultra‑smooth surface refinement in both manual and machine sanding. The 6120 series offers exceptional conformability, low clogging, and consistent performance throughout its entire service life, making it ideal for ultra‑fine finishing, polishing, and final surface preparation.\u003c\/p\u003e\n\u003cp\u003eThe open nonwoven structure adapts easily to contours, edges, and complex shapes while maintaining a controlled, even finish. A hook‑and‑loop (grip) backing ensures fast, secure attachment to orbital sanders and finishing tools.\u003c\/p\u003e\n\u003cp\u003ePart #: \u003cstrong\u003e1245.3717.8712\u003c\/strong\u003e\u003cbr\u003eGrade: \u003cstrong\u003eUltra Fine (Gray)\u003c\/strong\u003e\u003cbr\u003eQuantity: \u003cstrong\u003e25 discs per box\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHighly flexible nonwoven construction adapts to contours and edges\u003c\/li\u003e\n\u003cli\u003eUltra‑fine finishing capability for controlled surface refinement\u003c\/li\u003e\n\u003cli\u003eLow tendency to clog; suitable for dry or wet sanding\u003c\/li\u003e\n\u003cli\u003eProduces smooth, uniform finishing results\u003c\/li\u003e\n\u003cli\u003eGrip (hook‑and‑loop) backing for fast disc changes\u003c\/li\u003e\n\u003cli\u003eIdeal for manual sanding or portable machine sanding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Notes\u003c\/h2\u003e\n\u003cp\u003e6120 siafleece uses a mechanically coated nonwoven fiber structure that maintains cutting consistency as the disc wears. The resin‑over‑resin bonding improves durability and reduces fiber shedding during machine use. The Ultra Fine grade is equivalent to a gray nonwoven finishing disc and is ideal for ultra‑smooth surface refinement prior to painting, coating, or polishing.\u003c\/p\u003e\n\u003ch2\u003eRecommended Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUltra‑fine finishing and blending\u003c\/li\u003e\n\u003cli\u003eFinal surface preparation before painting or coating\u003c\/li\u003e\n\u003cli\u003eLight polishing and cleaning\u003c\/li\u003e\n\u003cli\u003eDiscoloration removal\u003c\/li\u003e\n\u003cli\u003eSurface refinement on metals and alloys\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuitable Materials\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUnalloyed and low‑alloy steel\u003c\/li\u003e\n\u003cli\u003eNon‑ferrous metals\u003c\/li\u003e\n\u003cli\u003eHigh‑alloy steels\u003c\/li\u003e\n\u003cli\u003eAluminum\u003c\/li\u003e\n\u003cli\u003eStainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComparison Advantage\u003c\/h2\u003e\n\u003cp\u003eUnlike many nonwoven finishing discs on the market, \u003cstrong\u003esia 6120 siafleece\u003c\/strong\u003e discs feature a backing specifically engineered for use with grip (hook‑and‑loop) backup pads. This purpose‑built design provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMore secure attachment to the pad\u003c\/li\u003e\n\u003cli\u003eReduced slippage during use\u003c\/li\u003e\n\u003cli\u003eImproved disc stability and control\u003c\/li\u003e\n\u003cli\u003eLonger usable life compared to generic nonwoven grip discs\u003c\/li\u003e\n\u003cli\u003eMore consistent finishing results across the entire surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis gives 6120 siafleece a performance advantage over traditional nonwoven discs adapted from hand pads or sheets.\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 6120 siafleece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Nonwoven finishing disc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e Ultra Fine (Gray)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 6\" disc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking:\u003c\/strong\u003e Nonwoven with grip (hook‑and‑loop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Mechanical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding:\u003c\/strong\u003e Resin over resin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e Dry or wet sanding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Box:\u003c\/strong\u003e 25 discs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1245.3717.8712\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSMSDistributors Expert Notes\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003esia 6120 siafleece\u003c\/strong\u003e series stands out in the nonwoven finishing category because it is engineered specifically for machine use. Many competing nonwoven discs—such as Mirka Mirlon, Norton Bear‑Tex, and 3M Scotch‑Brite—are adapted from hand pads or sheet material, which can lead to slippage, premature wear, and inconsistent finishing when used on orbital sanders.\u003c\/p\u003e\n\u003cp\u003eIn contrast, 6120 siafleece discs feature a \u003cstrong\u003epurpose‑built grip backing\u003c\/strong\u003e designed for hook‑and‑loop backup pads. This results in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior disc stability\u003c\/strong\u003e during machine sanding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced slippage\u003c\/strong\u003e compared to generic nonwoven grip discs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger disc life\u003c\/strong\u003e due to improved backing durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore consistent finishing\u003c\/strong\u003e across the entire surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter edge control\u003c\/strong\u003e when working on contours or tight areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Ultra Fine (Gray) grade is ideal for final surface preparation, polishing, and ultra‑smooth finishing. It produces a refined, uniform finish that is noticeably smoother than many competing nonwoven discs.\u003c\/p\u003e\n\u003cp\u003eFor shops accustomed to Mirlon or Bear‑Tex, 6120 siafleece offers a noticeable upgrade in both performance and longevity—especially when used on orbital sanders with grip backup pads.\u003c\/p\u003e\n\u003ch2\u003eVideo\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/PAAWZ33SsYc?si=VWaYC94EXTZYEz3j\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/vAip6z3R1VY?si=Ot_FsbyzPxeWNqfB\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the 6120 siafleece series used for?\u003c\/h3\u003e\n\u003cp\u003eThe 6120 siafleece series is designed for fine and ultra‑fine finishing, blending, polishing, and surface preparation on metals. It produces a uniform, controlled finish and adapts easily to contours and edges.\u003c\/p\u003e\n\u003ch3\u003eWhat grade is this disc?\u003c\/h3\u003e\n\u003cp\u003eThis product is the \u003cstrong\u003eUltra Fine (Gray)\u003c\/strong\u003e grade, ideal for ultra‑smooth finishing and final surface refinement.\u003c\/p\u003e\n\u003ch3\u003eWhat is the part number for this disc?\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s part number is \u003cstrong\u003e1245.3717.8712\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow many discs come in a box?\u003c\/h3\u003e\n\u003cp\u003eEach box contains \u003cstrong\u003e25 discs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat type of backing does this disc use?\u003c\/h3\u003e\n\u003cp\u003eThese discs use a \u003cstrong\u003egrip (hook‑and‑loop)\u003c\/strong\u003e backing designed specifically for use with orbital sanders and grip backup pads. This provides better stability and longer disc life compared to nonwoven discs adapted from hand pads.\u003c\/p\u003e\n\u003ch3\u003eIs this disc suitable for wet sanding?\u003c\/h3\u003e\n\u003cp\u003eYes. The 6120 siafleece series is suitable for both \u003cstrong\u003edry and wet sanding\u003c\/strong\u003e applications.\u003c\/p\u003e\n\u003ch3\u003eWhat materials can I use this disc on?\u003c\/h3\u003e\n\u003cp\u003eThese discs work well on unalloyed and low‑alloy steel, stainless steel, aluminum, non‑ferrous metals, and high‑alloy steels.\u003c\/p\u003e\n\u003ch3\u003eHow does this compare to Mirka Mirlon or Norton Bear‑Tex?\u003c\/h3\u003e\n\u003cp\u003eUnlike many nonwoven discs adapted from hand pads, \u003cstrong\u003esia 6120 siafleece\u003c\/strong\u003e discs feature a backing engineered specifically for grip backup pads. This provides more secure attachment, better control, reduced slippage, and more consistent finishing results.\u003c\/p\u003e\n\u003ch3\u003eWhat machines are these discs compatible with?\u003c\/h3\u003e\n\u003cp\u003eThese discs are compatible with any 6\" orbital sander or finishing tool that accepts hook‑and‑loop discs.\u003c\/p\u003e\n\u003ch2\u003eAbout Us\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.smsdistributors.com\/\" title=\"SMSDistributors.com home page\"\u003e\u003cstrong\u003eSMSDistributors.com\u003c\/strong\u003e\u003c\/a\u003e is an authorized distributor of sia Abrasives, supplying professional‑grade grinding, sanding, and finishing products for automotive, marine, metal fabrication, woodworking, and industrial applications. We provide accurate technical data, fast shipping, and expert support to help customers choose the right abrasive for every job.\u003c\/p\u003e\n\u003ch2\u003eCategory\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Nonwoven Finishing Discs, Surface Conditioning Discs, siafleece 6120 Series\u003c\/p\u003e","brand":"sia abrasives","offers":[{"title":"Default Title","offer_id":44516524261442,"sku":"1245.3717.8712","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0118\/2262\/files\/sia_Abrasives_6120_Siafleece_Siafast_6_Inch_NW_Scuff_Disc_Ultra_Fine_Gray_1.jpg?v=1785102218","url":"https:\/\/www.smsdistributors.com\/products\/siafleece-6120-6in-grip-disc-ultra-fine","provider":"SMSDistributors.com","version":"1.0","type":"link"}