{"product_id":"3m-wetordry-sandpaper-320-grit-9x11-in-25-sheets-for-final-between-coats-sanding-99421na","title":"3M Wetordry Sandpaper 320 Grit – 9x11 in, 25 Sheets for Final\/Between-Coats Sanding (99421NA)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e3M Wetordry 320 grit sandpaper is a versatile choice for refining finishes, whether you’re performing final sanding or smoothing between coats. The 9\" x 11\" waterproof sheets are designed to handle lacquers, primers, sealers, plastics, and paints with a controlled, even cut. The silicon carbide abrasive stays sharp under use, delivering a smooth, consistent pass that helps you achieve a refined surface without gouges. This paper tolerates wet use, which helps reduce clogs and keeps the abrasive working longer, especially when working on detailed or contoured areas.\u003c\/p\u003e\n\u003cp\u003eTwo waterproof backings give you options for different tasks: a flexible A-weight backing for contour sanding and a durable C-weight backing for more aggressive stock removal. Whether you’re working by hand or with a sanding block, this sheet adapts to your workflow and helps you maintain steady control as you progress toward a premiere finish.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e320 grit silicon carbide abrasive provides fast, smooth cutting for a refined finish\u003c\/li\u003e\n  \u003cli\u003eWaterproof paper works well with water or cutting oil to minimize loading and extend life\u003c\/li\u003e\n  \u003cli\u003eTwo backings: A-weight for contour sanding, C-weight for material removal\u003c\/li\u003e\n  \u003cli\u003eSuitable for hand sanding or use with a sanding block on flat or contoured surfaces\u003c\/li\u003e\n  \u003cli\u003eFollow the grain where appropriate and skip no more than one grit between steps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal‑world uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePrep surfaces for lacquer, primers, sealers, plastics, or paint to achieve a smooth base\u003c\/li\u003e\n  \u003cli\u003eAddress minor surface defects before priming or sealing for a cleaner finish\u003c\/li\u003e\n  \u003cli\u003eBetween coats smoothing to ensure even texture and attraction of the final topcoat\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cp\u003eMaintain a light touch and steady motion, using a sanding block for flat areas. When working wet, apply a gentle stream or spray to reduce loading and wipe or rinse the sheet as needed. Transition to a finer grit as you approach the desired final feel for best results.\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 surfaces can I use 3M Wetordry 320 Grit sandpaper on?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Suitable for lacquers, primers, sealers, plastics, and paints; use on flat or contoured areas, with water or oil to reduce clogging and prolong abrasive life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What backing options does 3M Wetordry 320 Grit sandpaper offer and when to use them?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Two waterproof backings: A-weight for contour sanding and C-weight for stock removal; choose A for flexibility, C for faster material removal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":47464056324270,"sku":"B000VL61BA","price":71.08,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6012\/9710\/files\/3m-wetordry-sandpaper-320-grit-9x11-25-sheets.jpg?v=1770290883","url":"https:\/\/handyskook.ca\/products\/3m-wetordry-sandpaper-320-grit-9x11-in-25-sheets-for-final-between-coats-sanding-99421na","provider":"HandySkook","version":"1.0","type":"link"}