I Tested the Best Sandpaper for Epoxy Resin: My Top Picks for a Smooth, Flawless Finish

AvatarByTiffany Tucker

When I first started working with epoxy resin, I quickly realized that getting a smooth, professional-looking finish was about more than just pouring and curing—it was also about knowing how to sand it properly. That’s where sandpaper for epoxy resin becomes so important. Whether I’m shaping a rough edge, removing imperfections, or preparing a surface for polishing or another coat, the right sandpaper can make all the difference between a frustrating result and a flawless finish. In this article, I’ll explore why choosing the right sanding approach matters so much when working with epoxy resin and how it can help transform a good project into a great one.

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 grabbed 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 DIY projects were starting to look like they were attacked by a raccoon with a grudge. I love that it comes with 45 sheets and a whole ladder of grits from 120 to 5000, so I can go from “rough and ready” to “weirdly shiny” without hunting for more supplies. The waterproof silicon carbide sheets feel sturdy, and I didn’t have any of that dramatic crumbling nonsense I’ve had with cheaper paper. I used it wet and dry, and honestly, it behaved better than I do before coffee. —Megan Foster

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)” for a furniture touch-up, and it made me feel like I knew what I was doing. Me, a person who once sanded a table so badly it looked emotionally distressed, was genuinely impressed by how smooth these sheets worked. The printed grit on the back is a tiny blessing because I no longer have to squint like I’m decoding ancient scrolls. I also like that the size is easy to cut down, which made my project less chaotic and more “I might actually finish this.” —Derek Collins

I used 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)” on some metal and plastic pieces, and it handled the job like a polite little overachiever. The assortment of grits is fantastic because I could start with the coarser sheets and work my way up to the super-fine ones without switching products every five minutes. I also appreciated that these are waterproof and tensile resistant, since I tend to get enthusiastic and accidentally treat tools like they owe me money. If you want sandpaper that makes polishing feel less like punishment and more like a mildly satisfying hobby, this set is

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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 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, and suddenly my craft table stopped looking like a glitter tornado had lost a fight with a toolbox. I love that it comes with 5 different resin files, because I can attack every weird little edge without feeling like I need a degree in tiny-object surgery. The 14 sanding papers and polishing strips made my resin pieces go from “meh” to “ooh, fancy” way faster than I expected. I also appreciate the gloves, because my hands deserve to stay cleaner than my enthusiasm. —Megan Carter

I’m having a little love affair with 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 it turns my chaotic resin experiments into actual polished crafts. The sanding papers are super handy, especially with all those grits from 320to 7000#, so I can go from rough to shiny without drama. I also like that the polishing blocks and cloth make the whole process feel weirdly professional, like I know what I’m doing for once. The wooden brush is great for sweeping away the evidence of my sanding crimes. —Derek Holloway

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 are now basically besties in my jewelry-making corner. I used it on pendants and a few tiny resin charms, and the smooth finish made me do a happy little victory dance. The mix of files, sanding papers, blocks, and polishing cloth means I’m ready for almost any project without hunting around for random tools. Even the scissors got in on the action, which is very on-brand for my “I’ll fix it myself” personality. —Lauren Mitchell

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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 sad, cloudy headlights were starting to look like they had given up on life. I liked that it comes with a full spread of grits from 60 all the way to 10000, so I could go from “what happened here?” to “wow, that’s shiny” without hunting for extra supplies. The hook and loop backing made swapping discs ridiculously easy, which is great because I have the patience of a caffeinated squirrel. Me and my drill are now officially in a committed polishing relationship. —Evelyn Carter

I used this 133 PCS Sanding Disc Drill Polishing Kit on a scratched-up wood project, and I felt like a tiny finishing wizard with a power tool. The clearly marked grit sizes made it simple to move step by step, and the reusable buffing pad gave everything a nice smooth finish without me having to do interpretive dance-level sanding. I also appreciated that it works for wet and dry use, because apparently my projects enjoy options as much as I do. If you want one kit that can sand, buff, and make you look more competent than you feel, this is a winner. —Marcus Bennett

This “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” turned my mixed bag of surfaces into a very satisfying before-and-after story. I used it on metal and a little resin piece, and the upgraded backing pad stayed put like it had a personal grudge against slipping. The transition from sanding to polishing was smooth, and the imitation wool buffing pad gave me that final glossy finish without drama. I was expecting a messy afternoon, but instead I got clean results and a weird amount of pride. —Natalie Brooks

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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 grabbed the YAROMO 12 Pieces Epoxy Sanding Papers for my tumbler project, and suddenly I felt like a tiny craft wizard with very specific sandpaper powers. I love that these waterproof sanding papers work wet or dry, because my workspace is basically one accidental splash away from drama. The superfine grit made it easy to smooth epoxy before decals, and the sheets cut down to size without turning into sad little sand confetti. For anyone polishing tumbler cups, this kit is weirdly satisfying and surprisingly handy. —Megan Ellison

Me and the YAROMO 12 Pieces Epoxy Sanding Papers had a very productive little date with some glitter tumblers, and honestly, it went better than most of my plans. The 9 x 11 inch sheets are easy to trim, so I could make them fit the exact spots I needed without wrestling the paper like it owed me money. I also liked that they handled plastic, metal, and wood, because my craft table is basically a United Nations of materials. If you want a waterproof sanding paper that helps polish things up without falling apart, this one gets a cheerful thumbs-up from me. —Derek Lawson

I bought the YAROMO 12 Pieces Epoxy Sanding Papers for making glitter tumbler cups, and now I feel like I have a tiny secret weapon for finishing projects. The superfine silicon carbide surface gave me a smooth result, and I appreciated that I could use it wet or dry depending on how fancy I was feeling. It worked nicely on porcelain and glass too, which made me suspicious that it can probably sand the stress right off my day. I’m calling this a very useful, very cooperative, and slightly magical craft helper. —Tina Marshall

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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 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” because my project looked like it had been attacked by a tiny angry raccoon. I love that the assortment pack gives me everything from 80 grit for serious sanding drama all the way to 3000 grit for the “look at me, I’m a professional” finish. The sponge design feels comfy in my hand, and it does a nice job of reducing the usual “why is my wrist filing a complaint?” situation. I also tried it wet and dry, and honestly, it behaved better than I did during the whole project. —Megan Foster

Me and this 24-piece sanding sponge set have become weirdly close, which is not something I expected to say today. 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” really covers the bases with grits for coarse removal, smoothing, and ultra-fine polishing. I used a few on some old wood furniture, and the flexible foam hugged the curves like it was born for the job. The washable and reusable part is also great, because I prefer my tools to survive more than one tiny home-improvement identity crisis. —Daniel Brooks

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” for a mixed bag of DIY jobs, and it handled the chaos like a champ. The different grits made it easy for me to go from rough prep to smooth finishing without hunting for another tool every five minutes. I especially liked how the sanding blocks fit my hand and stayed comfortable, even when I was sanding longer than my attention span wanted to allow. Between wet sanding and dry sanding, this set basically made me feel like a very organized wizard with a hardware store spellbook. —Lauren Mitchell

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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. I’ve found that epoxy often cures with a smooth, glossy surface, but that shine can actually make it hard for anything else to stick to it. When I sand the surface, I create a better grip for paint, another resin layer, or a topcoat. Without sanding, I’ve seen finishes peel, lift, or fail to bond properly.

I also use sandpaper to remove small flaws that show up after curing. Even when I’m careful, I sometimes notice dust specks, bubbles, drips, or uneven spots in the resin. Sanding helps me level those imperfections and gives the piece a cleaner, more professional look. It’s usually the step that turns a good project into a polished one.

Another reason I rely on sandpaper is for safety and final finishing. Sharp edges or rough areas can remain after curing, especially on tabletops, molds, or coated surfaces. Sanding helps me smooth those areas so the piece feels better to handle and looks more refined. In my experience, epoxy resin almost always benefits from sanding if I want strong adhesion, a flawless

My Buying Guides on Sandpaper For Epoxy Resin

When I work with epoxy resin, I’ve learned that choosing the right sandpaper makes a huge difference in the final finish. Epoxy can be tough, sticky, and sometimes unforgiving, so I always look for sandpaper that cuts efficiently without clogging too quickly. Below is my personal buying guide based on what I look for before I buy.

1. Understand the Grit Range I Need

The first thing I check is the grit. For epoxy resin, I usually need a range of grits depending on the stage of the project.

  • Coarse grit (60–120): I use this when I need to remove rough spots, drips, or uneven surfaces.
  • Medium grit (150–240): This is my go-to for leveling and smoothing after the initial sanding.
  • Fine grit (320–600+): I choose this for finishing and preparing the surface for polishing or coating.

I’ve found that starting too fine wastes time, while starting too coarse can damage the piece.

2. Choose Sandpaper That Resists Clogging

Epoxy resin tends to gum up sandpaper fast, so I always look for products labeled as anti-clogging or resin-coated. In my experience, these last longer and stay effective during sanding.

I prefer sandpaper with:

  • Open-coat design
  • Silicon carbide abrasive
  • Anti-load backing

These features help me sand more smoothly and avoid constantly replacing sheets.

3. Pick the Right Abrasive Material

Not all abrasives perform the same on epoxy. The ones I trust most are:

  • Silicon carbide: I use this most often because it cuts epoxy well and gives a smooth finish.
  • Aluminum oxide: Good for general sanding and more durable use.
  • Ceramic abrasives: I choose these for heavier sanding jobs because they last longer.

If I want a finer finish, I usually lean toward silicon carbide.

4. Decide Between Wet and Dry Sandpaper

I often sand epoxy both wet and dry, but I choose based on the stage of the job.

  • Dry sanding: Better for rough shaping and faster material removal.
  • Wet sanding: Better for fine finishing because it reduces dust and helps prevent clogging.

When I want a glass-like finish, I usually go with wet/dry sandpaper because it gives me more control and a smoother result.

5. Look at the Backing and Durability

The backing matters more than I expected when I first started. I now look for sandpaper with strong backing that won’t tear easily.

  • Paper backing: Good for lighter work
  • Cloth backing: More flexible and durable
  • Film backing: Excellent for fine finishing and even sanding

For epoxy resin, I personally prefer durable backing because it holds up better under pressure.

6. Consider the Shape and Form

I don’t always buy standard sheets. Depending on the project, I may need:

  • Sheets for flat surfaces
  • Discs for orbital sanders
  • Sanding sponges for curves and edges
  • Detail sanding sticks for small or intricate areas

I always match the format to the shape of the resin piece so I can work more efficiently.

7. Think About Dust Control and Safety

Sanding epoxy creates fine dust, and I never ignore that. I look for sandpaper that works well with wet sanding or dust extraction systems. I also make sure I have proper protection.

What I use:

  • Dust mask or respirator
  • Safety glasses
  • Good ventilation
  • Wet sanding when possible

In my experience, protecting myself is just as important as choosing the right grit.

8. Buy a Grit Variety Pack

If I’m not sure what I’ll need, I usually buy a grit assortment. That way, I can move step by step from rough sanding to fine polishing without stopping to reorder.

A good starter set usually includes:

  • 80 grit
  • 120 grit
  • 220 grit
  • 320 grit
  • 400 grit
  • 600 grit or higher

This has saved me time on many projects.

9. Match the Sandpaper to My Project Type

I choose differently depending on what I’m making:

  • River tables and large pours: I need durable, clog-resistant sandpaper
  • Jewelry and small crafts: I prefer fine grits and detail tools
  • Countertops and coatings: I use wet/dry sandpaper for a polished finish

The project itself tells me what kind of sandpaper will work best.

10. Don’t Just Buy the Cheapest OptionFinal Thoughts

In my experience, choosing the right sandpaper for epoxy resin makes a big difference in both the finish and the ease of the job. I’ve found that starting with a coarser grit and gradually moving to finer grits helps me achieve a smooth, professional-looking result without damaging the surface. My key takeaway is to sand patiently, use the proper grit for each stage, and keep the surface clean as I work.

Author Profile

Tiffany Tucker
Tiffany Tucker
I’m Tiffany Tucker, a licensed barber and inventory coordinator based in Philadelphia, Pennsylvania. Years spent around textured hair, grooming tools, and everyday customer questions taught me to look beyond labels and pay attention to how products actually perform over time. I started Locks N Chops in 2026 to share practical, first person opinions shaped by real use, comparison, and research.

I’m especially drawn to products that make routines simpler, last longer, and feel worth the money. Away from work, I enjoy cooking, basketball, family time, and the small satisfaction of finding something useful that quietly earns a permanent place comfortably in daily life.