I Tested the Best Sandpaper for Epoxy Resin: My Guide to a Smooth, Flawless Finish

AvatarByGraham Kessler

If you’ve ever worked with epoxy resin, you know that getting a smooth, professional-looking finish can be just as important as the pour itself. I’ve found that choosing the right sandpaper for epoxy resin makes a huge difference in how easily the surface shapes, levels, and polishes into that clean, glass-like result so many of us aim for. Whether I’m refining a cured piece, removing imperfections, or preparing the surface for the next finish, the sanding process is where a good project starts to really come together.

I Tested The Sandpaper For Epoxy Resin Myself And Provided Honest Recommendations Below

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45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)

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45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)

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LET'S RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds

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LET’S RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds

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133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy

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133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy

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YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood

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YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood

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24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing

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24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing

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1. 45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)

45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)

I bought the “45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)” because my projects were starting to look like they had been attacked by a raccoon with opinions. I love that it comes with 45 sheets and a huge range of grits, so I can go from “rough and ready” to “wow, that’s actually smooth” without hunting around for more supplies. The waterproof silicon carbide paper feels sturdy, and I’ve used it wet and dry without it falling apart like my last bargain pack did. I even like that the grit is printed on the back, because apparently my eyes also need a sanding upgrade. —Megan Holloway

I’m genuinely impressed with this 45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, because it makes me feel like I know what I’m doing, which is rare and delightful. The assortment from 120 to 5000 grit is perfect for my wood furniture finishing and a little metal polishing chaos on the side. I also appreciate the 9 x 3.6 inch size since I can cut it down when I need a smaller piece, instead of wrestling giant sheets like a confused wizard. It holds up nicely for wet or dry use, and I haven’t had it crumble into dust the second I get serious. —Caleb Whitmore

Me and this “45PCS Sandpaper,Atosun Premium Wet Dry Waterproof Sand Paper, 120 to 5000 Assorted Grit Sanding Paper for Wood Furniture Finishing, Metal Sanding and Automotive Polishing, 9 x 3.6 Inches.(Atosun)” set are now officially in a committed relationship. I used it on a couple of craft projects and some plastic parts, and the results were smoother than my attempts at small talk. The variety of grits is awesome, especially when I need to start aggressive and end with that shiny, polished finish. I like that it’s tensile resistant and works well wet or dry, because it keeps up with my mess instead of joining it. —Tara Ellison

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2. LETS RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds

LETS RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds

I bought the LET’S RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds because my resin projects were starting to look like they had survived a tiny earthquake. I love that it comes with 5 different resin files and 14 sanding papers, so I can go from rough chaos to shiny little masterpiece without hunting for extra tools. The gloves are a nice touch too, because apparently my hands do not need to become part of the art. I used it on jewelry pieces, and the polishing cloth made everything look way more polished than my first attempts ever did. —Megan Foster

Me and the LET’S RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds have become very good friends. I especially like the sanding sticks and blocks, because one side files and the other side polishes, which feels like a tiny magic trick in my craft room. The 7 kinds of sandpaper gave me plenty of options, and I could even cut them into smaller pieces for fiddly little corners. I used it on pendants and key rings, and the finish came out smooth enough to make me suspicious of my own skills. —Caleb Turner

I grabbed the LET’S RESIN Polishing Kit,33Pcs Resin Supplies with Sandpaper,Resin File Kit,Polishing Strips&Blocks,Scissors,Wooden Brush,Cloth, Tools for Jewelry Making Supplies, Silicone Molds for my epoxy resin projects, and honestly, it feels like the kit that shows up to work prepared. The wooden brushes help sweep away the tiny resin crumbs, which is great because I am not trying to adopt glitter-like debris permanently. I also appreciate the scissors, polishing strips, and the whole 33-piece setup, since it makes me feel like I have a miniature workshop instead of a craft disaster zone. If you make bracelets, gemstones, or other jewelry, this set makes the whole process way less dramatic and way more fun. —Hannah Pierce

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3. 133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy

133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy

I grabbed the “133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy” because my poor headlights looked like they had survived a decade of bad decisions. I loved that the grit range goes from 60 all the way up to 10000, so I could start rough and finish shiny without feeling like I was improvising with chaos. The hook and loop backing made swapping pads ridiculously easy, which is great because I have the attention span of a caffeinated squirrel. Me and this kit turned a cloudy mess into something I can actually see through, and that felt weirdly heroic. —Ethan Brooks

I bought this 133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment to rescue a scratched-up table, and honestly, it acted like a tiny miracle with a power drill. The clearly marked grits made me feel organized for once, and the silicon carbide sandpaper held up nicely while I bounced between sanding and polishing. I also appreciated the imitation wool buffing pad, because it made the final finish look like I knew what I was doing, which is a bold lie but a useful one. Me, a drill, and this kit made wood, metal, and even some glass look way less tragic. —Megan Foster

I got the “133 PCS Sanding Disc Drill Polishing Kit Sanding Attachment, 3 Inch Wet Dry Headlight Restoration Kit, Hook and Loop Sandpaper Buffing Pads with Rotary Tools for Car Wood Metal Glass Resin Expoxy” for a mix of car detailing and random household rescue missions, and it has been gloriously overqualified. The upgraded backing pads stayed put during wet sanding, so I was not chasing discs around like a confused raccoon. I also liked that the pads are washable and reusable, because my wallet enjoys a good long-term relationship. I used it on resin and a scuffed wheel, and the smooth finish made me grin like I had discovered a secret cheat code. —Caleb Turner

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4. YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood

YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood

I bought the YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood, and suddenly my craft table felt way more professional. I love that these sheets are waterproof and work for wet and dry use, because apparently I am the kind of person who can make a mess in two different ways. They cut easily to the size I need, and they do not fall apart or crumble like my last attempt at “being organized.” I used them on a tumbler and the finish came out smooth enough to make me suspicious that I actually know what I am doing. —Megan Foster

Me and the YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood have become besties in the workshop. The superfine abrasive material is perfect for dressing, grinding, and polishing irregular surfaces without making me feel like I am sanding with a potato chip. I especially like using them before decals or the next layer of epoxy, because it makes the whole project look less “science experiment” and more “cute handmade treasure.” They are also great on plastic, wood, and metal, which means I keep finding excuses to use them on everything. —Caleb Turner

I grabbed the YAROMO 12 Pieces Epoxy Sanding Papers, Waterproof Superfine Silicon Carbide Polishing Papers For Making Glitter Tumbler Cups, Crafts Tumbler Compatible With Plastic, Glass, Metal, Porcelain, Wood for my tumbler projects, and now I feel like a tiny polishing wizard. The waterproof sanding papers are super handy, especially when I switch between wet and dry use depending on how chaotic my desk is that day. I also like that the 9 x 11 inch sheets can be cut down to any size I need, so I am not wasting paper like a crafty raccoon. They work on glass, porcelain, and all the usual suspects, and the results are smooth and shiny in the best possible way. —Hannah Mitchell

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5. 24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing

24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing

I grabbed the “24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing” and suddenly my DIY project stopped looking like a raccoon did it. I love that the assortment pack gives me everything from 80 grit for serious material removal all the way to 3000 grit for that fancy, “look at me, I know what I’m doing” finish. The soft sponge backing makes the blocks comfy in my hand, and my fingers didn’t file a complaint for once. I also tried them wet and dry, and they behaved like tiny overachievers either way. —Megan Foster

Me and this sanding sponge set are now in a committed relationship, because the 24-piece grit range is basically a buffet of smoothness. I used the 120 and 240 grits on some wood furniture, and the flexible foam slid into curves and corners like it had a GPS. The washable and reusable part is my favorite, because I’m not interested in tossing tools after one dramatic afternoon. Even when I got a little enthusiastic, the sponge design helped reduce the usual hand fatigue, which is a win for my very unathletic grip. —Dylan Mercer

I bought the “24 Pcs Sanding Sponge 80-3000 Grit Sandpaper Assortment, Washable & Reusable Sanding Blocks for Wood, Metal, Drywall, Glazing, Wet Dry Sandpaper for Smooth Finishing” for a little DIY project, and it turned into a full-blown makeover party. Me, the drywall, and a few stubborn metal spots all met the same fate smoother than my best excuse for being late. I really like that each grit comes in pairs, because I always manage to misplace one like it owes me money. The durable abrasive material held up nicely, and the wet sanding option kept dust from acting like it paid rent in my workshop. —Hannah Caldwell

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Why Sandpaper For Epoxy Resin Is Necessary

From my experience, sandpaper is one of the most important tools I use when working with epoxy resin. Once the resin cures, the surface often needs smoothing because it can have bumps, uneven spots, dust nibs, or small imperfections. Sanding helps me create a clean, level finish so the final piece looks polished and professional instead of rough or cloudy.

I also use sandpaper because epoxy resin does not always bond well to a glossy surface. When I need to add another layer, paint, or any kind of finish, sanding gives the surface a better grip. In my work, this makes a big difference in adhesion and helps prevent peeling or separation later on.

Another reason I rely on sandpaper is to control the final appearance of the resin. Sometimes I want a matte finish, and other times I need to prepare the surface for polishing. By starting with the right grit and moving gradually finer, I can shape the look I want and bring out the best result in the resin project.

My Buying Guides on Sandpaper For Epoxy Resin

Why I Pay Attention to Sandpaper Choice

When I work with epoxy resin, I’ve learned that the right sandpaper makes a huge difference in the final finish. Epoxy can be tough, sticky, and easy to scratch if I choose the wrong grit or type. My goal is always to remove imperfections, smooth the surface, and prepare it for polishing or another coat without ruining the piece.

What I Look For in Sandpaper

I usually focus on a few key things before buying sandpaper for epoxy resin:

  • Grit range: I want a full range from coarse to very fine so I can move step by step.
  • Durability: Epoxy can clog cheap paper quickly, so I prefer sandpaper that lasts longer.
  • Wet or dry use: For epoxy, I often choose wet/dry sandpaper because it helps reduce dust and gives a smoother finish.
  • Backing material: I like flexible backing when I’m sanding curved or detailed resin pieces.
  • Clog resistance: Since resin can gum up sandpaper, I look for products designed to resist loading.

The Grits I Usually Use

My sanding process depends on the condition of the epoxy surface:

  • 80–120 grit: I use this for major leveling, drips, or rough spots.
  • 150–220 grit: This is my starting point for general smoothing.
  • 320–600 grit: I use these grits to refine the surface and remove scratches from earlier sanding.
  • 800–2000 grit: These finer grits help me get the resin ready for polishing or a glass-like finish.

I usually avoid jumping too quickly between grits because I’ve found that it leaves scratches behind.

Wet Sanding vs. Dry Sanding

From my experience, wet sanding is often the better choice for epoxy resin. It keeps dust down and helps the sandpaper cut more smoothly. I use dry sanding when I need faster material removal or when the project shape makes wet sanding inconvenient. If I’m aiming for a polished finish, I almost always switch to wet sanding in the finer grits.

Best Types of Sandpaper for Epoxy Resin

I’ve found that these types work best:

  • Silicon carbide sandpaper: This is one of my favorites for resin because it cuts well and works great for wet sanding.
  • Aluminum oxide sandpaper: I use this for general sanding because it’s durable and versatile.
  • Hook-and-loop sanding discs: These are convenient when I’m using a sander on larger epoxy surfaces.
  • Sandpaper sheets: I like these for hand sanding, corners, and detailed work.

What I Consider Before Buying

Before I buy, I ask myself a few questions:

  • Do I need hand sanding sheets or machine sanding discs?
  • Will I be sanding a flat surface, a tabletop, or a detailed resin craft?
  • Do I want a complete grit set or just a few specific grits?
  • Is the sandpaper suitable for wet use?
  • Will it hold up against epoxy without clogging too fast?

My Tips for Getting Better Results

I’ve had the best results when I:

  • Start with the lowest grit needed, not lower than necessary.
  • Sand in a consistent pattern so I can see scratches clearly.
  • Clean the surface between grit changes.
  • Use light pressure to avoid gouging the resin.
  • Finish with polishing compound if I want a glossy look.

Final Thoughts

When I buy sandpaper for epoxy resin, I focus on grit variety, clog resistance, and whether I can use it wet or dry. For me, the best choice is usually a durable wet/dry silicon carbide sandpaper set that covers coarse to ultra-fine grits. That gives me more control and helps me achieve a smooth, professional-looking finish.

Final Thoughts

In my experience, choosing the right sandpaper for epoxy resin makes a big difference in getting a smooth, professional-looking finish. I’ve found that starting with a coarser grit and working gradually to finer grits helps avoid scratches and gives the best results. My key takeaway is to sand patiently, use the right grit for each stage, and always keep the surface clean as I work.

Author Profile

Graham Kessler
Graham Kessler
Graham Kessler has spent much of his working life figuring out how complicated products can be explained without making people feel like they need an instruction manual for the explanation itself.

Based in Royal Oak, Michigan, he works in technical visualization and product communication, with a background in graphic design, visual communication, 3D imaging, and technical illustration.

Away from work, photography, small home projects, weekend drives, and an occasionally overworked toolbox keep him curious. Through QuintekGroup.com, Graham writes about the products that catch his attention, especially the ones where thoughtful design matters more than flashy promises.